Could finally be a Concentricity guage that works.

Have had pretty poor experiences with concentricity guages/correctors (due to the points made in this review)- this one might actually be worthwhile??

New Wheel-Drive Concentricity Gauge from Accuracy One « Daily Bulletin

Looks the berries.

Nothing wrong with one that you rotate with your fingers.




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The one I made out of a V block and dti works fine too R93 but some people like nice things, Blasers and Sakos come to mind ;)

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Originally Posted by R93

Nothing wrong with one that you rotate with your fingers.




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I wasn't having much luck R93. (I think for the reason explained in the article).

-Seemed a bit hit-and-miss in my hands. -was getting varying results, so I lost faith in it and stopped using it.

Yeah I like nice stuff but how do you have problems with a simple run out gauge? sausage fingers?:yaeh am not durnk:

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Originally Posted by veitnamcam

The one I made out of a V block and dti works fine too R93 but some people like nice things, Blasers and Sakos come to mind ;)

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-"V-block" 's a good idea, then rolling the case is less likely to throw the position.

A question:
-I've always assumed we are trying to get concentricity between the case & projectile. But this assumes the bore is cut parallel (concentric) with the chamber??
-Is there any way to check that the bore and chamber are in fact alligned properly?

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Originally Posted by sneeze

Yeah I like nice stuff but how do you have problems with a simple run out gauge? sausage fingers?:yaeh am not durnk:

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Salamis :thumbsup:

Check your fired case

And then cry if it's not what you expected? Better to never know :D

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Originally Posted by veitnamcam

Check your fired case

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Ah, so the "neck" portion of the chamber couldn't be machined out of allignment to the bore then??

(Humour me- I know next to nothing about machining).

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Originally Posted by veitnamcam

The one I made out of a V block and dti works fine too R93 but some people like nice things, Blasers and Sakos come to mind ;)

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True. But I cant work out how one would have problems with a simple one.
I dont own Blasers coz they are nice. If you seen the state of my rifle it would be obvious.
I own them because they best suit my needs and are extremely practical.
Ok, my F3 is pretty and could be replaced with a cheaper gun, but its the only thing I own thats pretty and does not need to be.


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Originally Posted by Spanners

And then cry if it's not what you expected? Better to never know :D

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Hahaha- yeah, that's the point I got to:

-realised I didn't really know 'how much was too much' anyway, and the rounds were shooting better than I can consistently. So it's pretty much stayed in the cupboard since then. :thumbsup:

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Originally Posted by James

Ah, so the "neck" portion of the chamber couldn't be machined out of allignment to the bore then??

(Humour me- I know next to nothing about machining).

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Yes they can be out of line.
Very rare on a custom rifle, if you did come across one, the bugger that did it would be a lazy prick.
If you get no case runout on a fired case its a pretty good indication.
There are other ways to test but take a while to explain.


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Quote:

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Originally Posted by James

Ah, so the "neck" portion of the chamber couldn't be machined out of allignment to the bore then??

(Humour me- I know next to nothing about machining).

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Yes shouldnt but it can.

Yeah salamis would make it a bit harder :D
I find the sinclair one very consistant when I can be bothered to use it.