We believe the Sinclair Concentricity Gauge is the easiest to use and most accurate gauge of its kind on the market. Precision made for a lifetime of use, the Sinclair Concentricity Gauge will accept cases up to 50 BMG. The Sinclair Concentricity Gauge is used to measure runout by rotating the case or loaded round on two sets of bearings that are captured in anodized aluminum blocks. These bearing blocks are adjustable longitudinally to allow for different case lengths or varying lengths of loaded rounds. The handloader can measure sized cases on the neck, and measure loaded rounds on the neck or out on the bullet. The bearing blocks ride in a milled slot in the gauge base plate. This milled slot keeps the blocks in alignment with each other. This arrangement provides the best support for the cartridge, enabling the user to spin the cartridge smoothly. Large thumb levers on the bearing blocks make adjustments quick and easy. The anodized base plate is extremely stable allowing the user to take accurate readings. The indicator tower is designed to permit vertical and side-to-side adjustment of the dial indicator. The mounting block for the dial indicator is designed to accommodate dial indicators with standard 0.375" mounts. This is a quality measuring tool for the serious precision reloader.
Mehr...
Wir glauben, dass das Sinclair Concentricity Gauge das am einfachsten zu verwendende und genaueste Gerät seiner Art auf dem Markt ist. Das Sinclair Concentricity Gauge ist auf eine lebenslange Präzision ausgelegt und eignet sich für Fälle bis zu 50 BMG. Das Sinclair Concentricity Gauge wird zum Messen des Rundlaufs verwendet, indem das Gehäuse gedreht oder auf zwei Lagersätze geladen wird, die in anodisierten Aluminiumblöcken aufgenommen sind. Diese Lagerböcke sind in Längsrichtung verstellbar, um unterschiedliche Gehäuselängen oder unterschiedliche Längen der geladenen Patronen zu ermöglichen. Der Handlader kann große Hüllen am Hals und geladene Patronen am Hals oder am Geschoss messen. Die Lagerböcke sitzen in einem gefrästen Schlitz in der Grundplatte der Lehre. Dieser gefräste Schlitz hält die Blöcke zueinander ausgerichtet. Diese Anordnung bietet die beste Unterstützung für die Patrone, so dass der Benutzer die Patrone reibungslos drehen kann. Große Daumenhebel an den Lagerböcken ermöglichen eine schnelle und einfache Einstellung. Die eloxierte Grundplatte ist äußerst stabil, sodass der Benutzer genaue Messergebnisse erzielen kann. Der Anzeigenturm ist so konstruiert, dass die Messuhr vertikal und von einer Seite zur anderen verstellt werden kann. Der Montageblock für die Messuhr ist für Messuhren mit 0,375 "-Standardbefestigung ausgelegt. Dies ist ein Qualitätsmesswerkzeug für den seriösen Präzisions-Wiederlader.
Mehr...
Kundenbewertungen zu SINCLAIR INTERNATIONAL CONCENTRICITY GAUGE WITHOUT INDICATOR
Anzahl der Bewertungen: 26
Von brownells.com: 26
Durchschnittliche Bewertung: 4,2
Great Product!(18.02.2011)
I'm impressed with this tools simple, sturdy, accurate design. But I was very dissappointed when I first measured a batch of reloads. The runout was awful! After a lot of thinking it occurred to me that I was using new brass, which has lots of small dents and dings that are not straightened out by the FL Sizing Die. My confidence was restored however when I measured reloads that used fire formed brass, which were either PN Sized or FL Sized. I use it all throughout my reloading process to pinpoint where runout is being introduced. Then I change my process. I can usually keep runout down to within +/- 0.001" now.
I would recommend this product to anyone(01.04.2011)
I use it to check concentricity of cases and loaded rounds.very simple to use ,easy operation and accurate.
Great Product(14.04.2011)
Works as advertised and does it well. Only problem is it showed my reloading skills need work.
must have(16.04.2011)
A must have for the precision loader. Easy to set up and highly accurate!
Made in China(17.06.2011)
I was very disappointed that the dial indicator was made in China. The base unit itself seems rock solid though.
useful tool(10.10.2011)
wish dial was made in america..works great.. back roller has a stop bar and it would be great if it was adjustable to allow you to move it back or forth where you want it
Top notch Quality(29.12.2011)
My custom build wasn't performing up to my expectations. The only think I could think of was run out. Hence, I ordered the Sinclair Concentricity Gage with the dial indicator. The problem was found immediately. Some of the rounds were eccentric by .006 and need to be scrapped. On to my new Lapua brass, all 200 cases are within .0005, perfect start. Being that I own other indicators, Starret and Interapid last word indicators from my mold making days, I know quality. The indicator that comes with the unit is a very nice indicator. It is by no means a piece of junk. It has tight tolerances and a super smooth mechanism. The base and blocks are also very well thought out and the fit and finish on the entire gage is superb. Heavier than what it looks. Well worth the price. Best of all, I got my answers.
Also works as a bullet sorting stand.(06.02.2012)
As a concentricity gauge it works great, but takes a little bit of practice to get used to. I like to check my necks and bullet runout with it. I also take my Sinclair hex comparator and place it on the base behind the case rollers. I can then swing the indicator over the comparator, drop a bullet in and use it as a sorter. Great tool, well made and versatile.
Bent Bullet Shooting(01.12.2012)
Military surplus ammunition's' bullets are not straight. Rolling them on a egocentricity gauge until the highest or lowest points are identified and then marking these points allows the shooter to insert the bullets so that they are all in the same direction in the chamber. This cuts down on the impact dispersion. A fun tool to use and a useful one at that. [Nothing to Disclose]
Great tool(13.11.2013)
Works great. Only problem is after checking a few loads I had to order a set of L.E. Wilson dies because my RCBS neck dies aren't making it.
Well built easy to use tool.
Very Disappointed - poor design(30.05.2014)
The quality of the product is excellent. Very well made, strong and durable. For me the fault lies in the design. A cartridge lying across the bearings has nothing to support the meplat when the indicator is lowered. Very difficult to get consistent readings. Mine goes back tomorrow in exchange for a Forster
Tool could be much better!!!!!(03.01.2015)
This is a very well built product however, It is VERY difficult to use. I fought with it for about a box of reloaded .308 and gave up. You need at least 3 hands to use this tool. I never could get consistent measurements. The cartridge slips around on the bearings. And there are not instruction on how to remove the run out. I sold it on Gunbroker and bought a Hornady concentricity tool and I like it a lot.
I must say I am disappointed in Sinclair for selling a marginal tool like this. .
Impossible to align(28.07.2015)
Impossible to align indicator arm to center-line of cartridge. There is so much slack in the armature that when you tighten the screws to lock the indicator and height, it ratchets the armature so that it is impossible to center the indicator arm over the case or bullet center-line. Itâs not usable for 30 caliber or less due to this excessive offset. One solution would be to lengthen the tower arm and through hole offsets so that you could rotate the tower arm to guarantee alignment. Others gave good reviews, maybe I just got a bad one.
Extremely Excellent Tool(10.05.2016)
The product takes just a bit of practice to perfect, but once you learn how to use it, with a technique that works for you, it is simply excellent. For me, I use my left index finger to spin the bullet, While using my right index finger to lightly stabilize the bullet when I lift my left index finger off the bullet during the spinning cycle. The sliding bullet rests with the bearing cradle are infinitely adjustable. It is much more accurate than some of the other products on the market. It really is perfect with just a little bit of practice.
Customer Service is Otstanding(23.05.2016)
I bought my gauge at least 15 years ago, and called Sinclair's CS today to get a part. Jackie accessed my old purchase data and without further ado Valeria sent a replacement part at no charge. Wow!
Sears used to be like this, Dillon Precision still is, and we are blessed to have another vendor of integrity among us.
About the gauge: it revealed that my reloads had 2-3 thousandths run-out. I did some reading and changed my seating technique to half-seating each bullet, then rotating the case 180 degrees for final seating. The large majority of my loads are now within .001", and I used the gauge to sort match loads from practice loads.
I've gotten interested in long-range precision rifle competition recently, so the gauge will again be an integral part of my ammo prep.
Disappointing Attention To Detail(18.01.2018)
Yes I knew it would come with a less than desirable Chinese Dial Indicator. Bent and rusted dial markers was worse than inticipated. Now I donât know what exactly this blue tinged dust which coated the base was, but I wiped everything down with KROIL. Then all the dings and scratches appeared. Is this the new Sinclair standard of excellence?
After many years of hand loading, I am ramping up to loading match ammo and I needed a concentricity gauge. Sinclair has a good rep and this one was on sale, so I took the plunge and ordered one. To be honest, at the price I paid, I expected the included dial indicator to be a piece of junk. It did not disappoint. Not China's finest work, but I spent some time working on it and it will do for now. I'll replace it with a good one later. The mount shaft on the indicator measured .375", which is standard. The two holes in the cross support fitting measure .377", so the indicator fits the support with very little slop, which is good for accuracy. The tool's vertical post, on the other hand, measured .371", which allows a lot of slop when the cross support is slid into place. This is NOT good for accuracy at all. I ended up wrapping the post with a layer of cellophane tape to increase the diameter. That eliminated most of the slop and made the tool usable. The four captured steel balls are polished nicely and allow brass cases to roll relatively freely. The down side is the balls do not provide a secure rest and a little clumsiness will roll the case right off the tool. Total attention is required to make sure the brass case is held on the tool correctly and rolled smoothly. Using both hands helps! With the repairs and improvements I made, and a little self training, I am able to get accurate readings....if I pay attention. My recommendation is to buy a better tool unless the price for this one is too attractive to pass up. If that is the case, buy this tool without the indicator and add your own quality one.
Junk dial indicator(03.12.2018)
The included dial indicator hangs up on every revolution and looks like a very poor quality part. Sinclair would not exchange the dial indicator itself unless I sent back the whole concentricity gauge (which I am still using with a dial indicator borrowed from my machine shop). Unhappy with the whole deal.
Highest quality(16.12.2019)
It is a real treat to buy something quality in this world of junk for sale. I can not see how you could do better than Sinclair. A quality aid to a accurate shot.
Has definitely improved my reloading(30.03.2020)
A friend lent me his Sinclair concentricity gauge to try it out. I was so pleased with it that I bought one for myself. The gauge has been worth the "price of admission" in helping me figure out where I was inducing runout during my reloading process. As I result, my die preparation and setup routine has been adjusted, and I am getting much better results. Once set up, it only take a few seconds to occasionally check a round to assure things are still on track. For our club competitions, I plan to check every finished round and sort them, in order to save the best for my shots for score.
I had intended to purchase the unit without the gauge, because I already own a decent Japanese dial indicator, and reviews of the included analog gauge were not great. The unit was on sale, however, so that the model with the gauge was the same price as the one without. While the included gauge may not be top quality (especially if you are a machinist) I feel it is plenty adequate for the task at hand. It was well packaged in its own box with a styrofoam liner, and it arrived in perfect condition. Someday, I will do a side by side comparison with my other gauge to see if I notice any differences.
It may be a minor suggestion, but I do wish the gauge used a different mounting system for the indicator, so that it was a little easier to set up. If the dial indicator were mounted to a rail that ran parallel to the axis of the cartridge, rather than using a swing arm from a fixed post, it might be a little easier to adjust for different size cartridges. That said, I haven't found a cartridge configuration that I couldn't set it up for yet.
It takes a few tries to get the hang of rolling the case slowly and carefully to achieve a good reading, but it is quick and easy to use, once you get the "touch" correct.
Great little gauge(13.04.2020)
This quality gauge allows verification of case neck runout before seating bullets. I was able to identify a die issue affecting my loading process.
And naturally, you can then verify bullet runout after seating the bullet.
Great addition to reloading(28.04.2020)
Great product, it's a great investment. I didn't realize how bad the run out was on some of my cases and loaded ammo. Now I can measure the run out of loaded ammo as well as case neck to get better concentricity.
Well Built, easily adjustable gage base(30.09.2015)
Bought this base minus gage head (I have a couple Starrett AGD indicators in the toolbox). The arm fits any AGD stem dial indicator from any manufacturer... If you already possess an indicator head, why buy another.....
Accuracy depends on the indicator increments, in my case I used an LSS 0,005 head.
Simple to set up and use by rolling the case on the ball bearing stands and using the back pin to locate the neck under the gage arm (wiich is adjustable) as well.
Solid and well made, a good addition to any loader concrened with case neck concentricity.
As spoken of in precision loading lure..(01.11.2015)
Get it? got it?.... good! this is high quality, and fits the bill well.
Works Great!(24.01.2020)
Well thought out tool which is simple and works great. I am a competitive shooter VFS BR and F-Class, I am also a rifle smith and a retired engineer. I did not buy the package with the dial indicator since I have plenty of dial and test indicators. I am also very particular about my measuring tools Mitutoyo is my preferred brand.
I looked at all the other types out there I even have a competitive brand which has a bullet cone and one case support. There are some very expensive ones out there.
This is easy to use and uses an industry standard 0.375 diameter mount for a dial indicator or a flexible arm for a test indicator. It also uses the case wall as the reference points.
The negative comments from others seem to stem from either the dial indicator from Brownells is not a high end indicator or the case is hard to set up and rolls off of the static bearing blocks.
I have $30 dollar dial indicators and I have $100 dial indicators you get what you pay for in the measuring tool business.
If you follow the directions and keep constant downward and back pressure on the cartridge case and do not, I repeat do not rotate the case fast you will get a clean accurate reading. If you spin it fast you will induce noise in the indicator and the case will want to lift off of the static bearing points.
quality product(29.01.2020)
Already had a couple dial indicators so I purchased this unit. Solid, quality construction. Post to cross bracket and indicator stem to cross bracket fit is tight. Finish is great. Takes a little practice but once you find your preferred way it's easy to use and delivers repeatable readings.
Artikel-Nr.: 749007271 SINCLAIR INTERNATIONAL CONCENTRICITY GAUGE WITHOUT INDICATOR Herstellerproduktnummer: 09150 Wir glauben, dass das Sinclair Concentricity Gauge das am einfachsten zu verwendende und genaueste Gerät seiner Art auf dem Markt ist. Das Sinclair Concentricity Gauge ist auf eine lebenslange Präzision ausgelegt und eignet sich für Fälle bis zu 50 BMG. Das Sinclair Concentricity Gauge wird zum Messen des Rundlaufs verwendet, indem das Gehäuse gedreht oder auf zwei Lagersätze geladen wird, die in anodisierten Aluminiumblöcken aufgenommen sind. Diese Lagerböcke sind in Längsrichtung verstellbar, um unterschiedliche Gehäuselängen oder unterschiedliche Längen der geladenen Patronen zu ermöglichen. Der Handlader kann große Hüllen am Hals und geladene Patronen am Hals oder am Geschoss messen. Die Lagerböcke sitzen in einem gefrästen Schlitz in der Grundplatte der Lehre. Dieser gefräste Schlitz hält die Blöcke zueinander ausgerichtet. Diese Anordnung bietet die beste Unterstützung für die Patrone, so dass der Benutzer die Patrone reibungslos drehen kann. Große Daumenhebel an den Lagerböcken ermöglichen eine schnelle und einfache Einstellung. Die eloxierte Grundplatte ist äußerst stabil, sodass der Benutzer genaue Messergebnisse erzielen kann. Der Anzeigenturm ist so konstruiert, dass die Messuhr vertikal und von einer Seite zur anderen verstellt werden kann. Der Montageblock für die Messuhr ist für Messuhren mit 0,375 "-Standardbefestigung ausgelegt. Dies ist ein Qualitätsmesswerkzeug für den seriösen Präzisions-Wiederlader.
Artikel-Nr.: 749007305 SINCLAIR INTERNATIONAL CONCENTRICITY GAUGE WITH DIAL INDICATOR Herstellerproduktnummer: 09175050806111585 Sinclair-Konzentrizitätsmessgerät mit Messuhr
134.9EUR15134,90 €
*
Lieferzeit ca. 21-30 Tage. mehr als 10 Stk. im USA Lager.
Artikel-Nr.: 749007902 SINCLAIR INTERNATIONAL CONCENTRICITY GAUGE WITH DIGITAL INDICATOR Herstellerproduktnummer: 09180 Wir glauben, dass das Sinclair Concentricity Gauge das am einfachsten zu verwendende und genaueste Gerät seiner Art auf dem Markt ist. Das Sinclair Concentricity Gauge ist auf eine lebenslange Präzision ausgelegt und eignet sich für Fälle bis zu 50 BMG. Das Sinclair Concentricity Gauge wird zum Messen des Rundlaufs verwendet, indem das Gehäuse gedreht oder auf zwei Lagersätze geladen wird, die in anodisierten Aluminiumblöcken aufgenommen sind. Diese Lagerböcke sind in Längsrichtung verstellbar, um unterschiedliche Gehäuselängen oder unterschiedliche Längen der geladenen Patronen zu ermöglichen. Der Handlader kann große Hüllen am Hals und geladene Patronen am Hals oder am Geschoss messen. Die Lagerböcke sitzen in einem gefrästen Schlitz in der Grundplatte der Lehre. Dieser gefräste Schlitz hält die Blöcke zueinander ausgerichtet. Diese Anordnung bietet die beste Unterstützung für die Patrone, so dass der Benutzer die Patrone reibungslos drehen kann. Große Daumenhebel an den Lagerböcken ermöglichen eine schnelle und einfache Einstellung. Die eloxierte Grundplatte ist äußerst stabil, sodass der Benutzer genaue Messergebnisse erzielen kann. Der Anzeigenturm ist so konstruiert, dass die Messuhr vertikal und von einer Seite zur anderen verstellt werden kann. Der Montageblock für die Messuhr ist für Messuhren mit 0,375 "-Standardbefestigung ausgelegt. Dies ist ein Qualitätsmesswerkzeug für den seriösen Präzisions-Wiederlader.
169.9EUR26169,90 €
*
Lieferzeit ca. 21-30 Tage. mehr als 10 Stk. im USA Lager.
We believe the Sinclair Concentricity Gauge is the easiest to use and most accurate gauge of its kind on the market. Precision made for a lifetime of use, the Sinclair Concentricity Gauge will accept cases up to 50 BMG. The Sinclair Concentricity Gauge is used to measure runout by rotating the case or loaded round on two sets of bearings that are captured in anodized aluminum blocks. These bearing blocks are adjustable longitudinally to allow for different case lengths or varying lengths of loaded rounds. The handloader can measure sized cases on the neck, and measure loaded rounds on the neck or out on the bullet. The bearing blocks ride in a milled slot in the gauge base plate. This milled slot keeps the blocks in alignment with each other. This arrangement provides the best support for the cartridge, enabling the user to spin the cartridge smoothly. Large thumb levers on the bearing blocks make adjustments quick and easy. The anodized base plate is extremely stable allowing the user to take accurate readings. The indicator tower is designed to permit vertical and side-to-side adjustment of the dial indicator. The mounting block for the dial indicator is designed to accommodate dial indicators with standard 0.375" mounts. This is a quality measuring tool for the serious precision reloader.
Mehr...
Wir glauben, dass das Sinclair Concentricity Gauge das am einfachsten zu verwendende und genaueste Gerät seiner Art auf dem Markt ist. Das Sinclair Concentricity Gauge ist auf eine lebenslange Präzision ausgelegt und eignet sich für Fälle bis zu 50 BMG. Das Sinclair Concentricity Gauge wird zum Messen des Rundlaufs verwendet, indem das Gehäuse gedreht oder auf zwei Lagersätze geladen wird, die in anodisierten Aluminiumblöcken aufgenommen sind. Diese Lagerböcke sind in Längsrichtung verstellbar, um unterschiedliche Gehäuselängen oder unterschiedliche Längen der geladenen Patronen zu ermöglichen. Der Handlader kann große Hüllen am Hals und geladene Patronen am Hals oder am Geschoss messen. Die Lagerböcke sitzen in einem gefrästen Schlitz in der Grundplatte der Lehre. Dieser gefräste Schlitz hält die Blöcke zueinander ausgerichtet. Diese Anordnung bietet die beste Unterstützung für die Patrone, so dass der Benutzer die Patrone reibungslos drehen kann. Große Daumenhebel an den Lagerböcken ermöglichen eine schnelle und einfache Einstellung. Die eloxierte Grundplatte ist äußerst stabil, sodass der Benutzer genaue Messergebnisse erzielen kann. Der Anzeigenturm ist so konstruiert, dass die Messuhr vertikal und von einer Seite zur anderen verstellt werden kann. Der Montageblock für die Messuhr ist für Messuhren mit 0,375 "-Standardbefestigung ausgelegt. Dies ist ein Qualitätsmesswerkzeug für den seriösen Präzisions-Wiederlader.
Mehr...
Kundenbewertungen zu SINCLAIR INTERNATIONAL CONCENTRICITY GAUGE WITHOUT INDICATOR
Anzahl der Bewertungen: 26
Von brownells.com: 26
Durchschnittliche Bewertung: 4,2
Great Product!(18.02.2011)
I'm impressed with this tools simple, sturdy, accurate design. But I was very dissappointed when I first measured a batch of reloads. The runout was awful! After a lot of thinking it occurred to me that I was using new brass, which has lots of small dents and dings that are not straightened out by the FL Sizing Die. My confidence was restored however when I measured reloads that used fire formed brass, which were either PN Sized or FL Sized. I use it all throughout my reloading process to pinpoint where runout is being introduced. Then I change my process. I can usually keep runout down to within +/- 0.001" now.
I would recommend this product to anyone(01.04.2011)
I use it to check concentricity of cases and loaded rounds.very simple to use ,easy operation and accurate.
Great Product(14.04.2011)
Works as advertised and does it well. Only problem is it showed my reloading skills need work.
must have(16.04.2011)
A must have for the precision loader. Easy to set up and highly accurate!
Made in China(17.06.2011)
I was very disappointed that the dial indicator was made in China. The base unit itself seems rock solid though.
useful tool(10.10.2011)
wish dial was made in america..works great.. back roller has a stop bar and it would be great if it was adjustable to allow you to move it back or forth where you want it
Top notch Quality(29.12.2011)
My custom build wasn't performing up to my expectations. The only think I could think of was run out. Hence, I ordered the Sinclair Concentricity Gage with the dial indicator. The problem was found immediately. Some of the rounds were eccentric by .006 and need to be scrapped. On to my new Lapua brass, all 200 cases are within .0005, perfect start. Being that I own other indicators, Starret and Interapid last word indicators from my mold making days, I know quality. The indicator that comes with the unit is a very nice indicator. It is by no means a piece of junk. It has tight tolerances and a super smooth mechanism. The base and blocks are also very well thought out and the fit and finish on the entire gage is superb. Heavier than what it looks. Well worth the price. Best of all, I got my answers.
Also works as a bullet sorting stand.(06.02.2012)
As a concentricity gauge it works great, but takes a little bit of practice to get used to. I like to check my necks and bullet runout with it. I also take my Sinclair hex comparator and place it on the base behind the case rollers. I can then swing the indicator over the comparator, drop a bullet in and use it as a sorter. Great tool, well made and versatile.
Bent Bullet Shooting(01.12.2012)
Military surplus ammunition's' bullets are not straight. Rolling them on a egocentricity gauge until the highest or lowest points are identified and then marking these points allows the shooter to insert the bullets so that they are all in the same direction in the chamber. This cuts down on the impact dispersion. A fun tool to use and a useful one at that. [Nothing to Disclose]
Great tool(13.11.2013)
Works great. Only problem is after checking a few loads I had to order a set of L.E. Wilson dies because my RCBS neck dies aren't making it.
Well built easy to use tool.
Very Disappointed - poor design(30.05.2014)
The quality of the product is excellent. Very well made, strong and durable. For me the fault lies in the design. A cartridge lying across the bearings has nothing to support the meplat when the indicator is lowered. Very difficult to get consistent readings. Mine goes back tomorrow in exchange for a Forster
Tool could be much better!!!!!(03.01.2015)
This is a very well built product however, It is VERY difficult to use. I fought with it for about a box of reloaded .308 and gave up. You need at least 3 hands to use this tool. I never could get consistent measurements. The cartridge slips around on the bearings. And there are not instruction on how to remove the run out. I sold it on Gunbroker and bought a Hornady concentricity tool and I like it a lot.
I must say I am disappointed in Sinclair for selling a marginal tool like this. .
Impossible to align(28.07.2015)
Impossible to align indicator arm to center-line of cartridge. There is so much slack in the armature that when you tighten the screws to lock the indicator and height, it ratchets the armature so that it is impossible to center the indicator arm over the case or bullet center-line. Itâs not usable for 30 caliber or less due to this excessive offset. One solution would be to lengthen the tower arm and through hole offsets so that you could rotate the tower arm to guarantee alignment. Others gave good reviews, maybe I just got a bad one.
Extremely Excellent Tool(10.05.2016)
The product takes just a bit of practice to perfect, but once you learn how to use it, with a technique that works for you, it is simply excellent. For me, I use my left index finger to spin the bullet, While using my right index finger to lightly stabilize the bullet when I lift my left index finger off the bullet during the spinning cycle. The sliding bullet rests with the bearing cradle are infinitely adjustable. It is much more accurate than some of the other products on the market. It really is perfect with just a little bit of practice.
Customer Service is Otstanding(23.05.2016)
I bought my gauge at least 15 years ago, and called Sinclair's CS today to get a part. Jackie accessed my old purchase data and without further ado Valeria sent a replacement part at no charge. Wow!
Sears used to be like this, Dillon Precision still is, and we are blessed to have another vendor of integrity among us.
About the gauge: it revealed that my reloads had 2-3 thousandths run-out. I did some reading and changed my seating technique to half-seating each bullet, then rotating the case 180 degrees for final seating. The large majority of my loads are now within .001", and I used the gauge to sort match loads from practice loads.
I've gotten interested in long-range precision rifle competition recently, so the gauge will again be an integral part of my ammo prep.
Disappointing Attention To Detail(18.01.2018)
Yes I knew it would come with a less than desirable Chinese Dial Indicator. Bent and rusted dial markers was worse than inticipated. Now I donât know what exactly this blue tinged dust which coated the base was, but I wiped everything down with KROIL. Then all the dings and scratches appeared. Is this the new Sinclair standard of excellence?
After many years of hand loading, I am ramping up to loading match ammo and I needed a concentricity gauge. Sinclair has a good rep and this one was on sale, so I took the plunge and ordered one. To be honest, at the price I paid, I expected the included dial indicator to be a piece of junk. It did not disappoint. Not China's finest work, but I spent some time working on it and it will do for now. I'll replace it with a good one later. The mount shaft on the indicator measured .375", which is standard. The two holes in the cross support fitting measure .377", so the indicator fits the support with very little slop, which is good for accuracy. The tool's vertical post, on the other hand, measured .371", which allows a lot of slop when the cross support is slid into place. This is NOT good for accuracy at all. I ended up wrapping the post with a layer of cellophane tape to increase the diameter. That eliminated most of the slop and made the tool usable. The four captured steel balls are polished nicely and allow brass cases to roll relatively freely. The down side is the balls do not provide a secure rest and a little clumsiness will roll the case right off the tool. Total attention is required to make sure the brass case is held on the tool correctly and rolled smoothly. Using both hands helps! With the repairs and improvements I made, and a little self training, I am able to get accurate readings....if I pay attention. My recommendation is to buy a better tool unless the price for this one is too attractive to pass up. If that is the case, buy this tool without the indicator and add your own quality one.
Junk dial indicator(03.12.2018)
The included dial indicator hangs up on every revolution and looks like a very poor quality part. Sinclair would not exchange the dial indicator itself unless I sent back the whole concentricity gauge (which I am still using with a dial indicator borrowed from my machine shop). Unhappy with the whole deal.
Highest quality(16.12.2019)
It is a real treat to buy something quality in this world of junk for sale. I can not see how you could do better than Sinclair. A quality aid to a accurate shot.
Has definitely improved my reloading(30.03.2020)
A friend lent me his Sinclair concentricity gauge to try it out. I was so pleased with it that I bought one for myself. The gauge has been worth the "price of admission" in helping me figure out where I was inducing runout during my reloading process. As I result, my die preparation and setup routine has been adjusted, and I am getting much better results. Once set up, it only take a few seconds to occasionally check a round to assure things are still on track. For our club competitions, I plan to check every finished round and sort them, in order to save the best for my shots for score.
I had intended to purchase the unit without the gauge, because I already own a decent Japanese dial indicator, and reviews of the included analog gauge were not great. The unit was on sale, however, so that the model with the gauge was the same price as the one without. While the included gauge may not be top quality (especially if you are a machinist) I feel it is plenty adequate for the task at hand. It was well packaged in its own box with a styrofoam liner, and it arrived in perfect condition. Someday, I will do a side by side comparison with my other gauge to see if I notice any differences.
It may be a minor suggestion, but I do wish the gauge used a different mounting system for the indicator, so that it was a little easier to set up. If the dial indicator were mounted to a rail that ran parallel to the axis of the cartridge, rather than using a swing arm from a fixed post, it might be a little easier to adjust for different size cartridges. That said, I haven't found a cartridge configuration that I couldn't set it up for yet.
It takes a few tries to get the hang of rolling the case slowly and carefully to achieve a good reading, but it is quick and easy to use, once you get the "touch" correct.
Great little gauge(13.04.2020)
This quality gauge allows verification of case neck runout before seating bullets. I was able to identify a die issue affecting my loading process.
And naturally, you can then verify bullet runout after seating the bullet.
Great addition to reloading(28.04.2020)
Great product, it's a great investment. I didn't realize how bad the run out was on some of my cases and loaded ammo. Now I can measure the run out of loaded ammo as well as case neck to get better concentricity.
Well Built, easily adjustable gage base(30.09.2015)
Bought this base minus gage head (I have a couple Starrett AGD indicators in the toolbox). The arm fits any AGD stem dial indicator from any manufacturer... If you already possess an indicator head, why buy another.....
Accuracy depends on the indicator increments, in my case I used an LSS 0,005 head.
Simple to set up and use by rolling the case on the ball bearing stands and using the back pin to locate the neck under the gage arm (wiich is adjustable) as well.
Solid and well made, a good addition to any loader concrened with case neck concentricity.
As spoken of in precision loading lure..(01.11.2015)
Get it? got it?.... good! this is high quality, and fits the bill well.
Works Great!(24.01.2020)
Well thought out tool which is simple and works great. I am a competitive shooter VFS BR and F-Class, I am also a rifle smith and a retired engineer. I did not buy the package with the dial indicator since I have plenty of dial and test indicators. I am also very particular about my measuring tools Mitutoyo is my preferred brand.
I looked at all the other types out there I even have a competitive brand which has a bullet cone and one case support. There are some very expensive ones out there.
This is easy to use and uses an industry standard 0.375 diameter mount for a dial indicator or a flexible arm for a test indicator. It also uses the case wall as the reference points.
The negative comments from others seem to stem from either the dial indicator from Brownells is not a high end indicator or the case is hard to set up and rolls off of the static bearing blocks.
I have $30 dollar dial indicators and I have $100 dial indicators you get what you pay for in the measuring tool business.
If you follow the directions and keep constant downward and back pressure on the cartridge case and do not, I repeat do not rotate the case fast you will get a clean accurate reading. If you spin it fast you will induce noise in the indicator and the case will want to lift off of the static bearing points.
quality product(29.01.2020)
Already had a couple dial indicators so I purchased this unit. Solid, quality construction. Post to cross bracket and indicator stem to cross bracket fit is tight. Finish is great. Takes a little practice but once you find your preferred way it's easy to use and delivers repeatable readings.