Question for gunsmith/barrel maker oversized chamber?


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Jan 23, 2016
We have a customer that had a proof research barrel done.

We have found that his chamber is .005 at the base over Sammi chamber specs . 003 about mid case over specs and correct at the shoulder.

I am pretty sure in the barrel world we are talking .0004 tolerances not .005??

We are thinking custom die so we don't overwork the brass.

Anyone have any thoughts on this?
They did not.

I have some answers from a Benchmark gunsmith. The short of it. The situation is not ideal and brass life is going to be shortened. He spoke about they a true bore barrel alignment system that has taken care of runout in the chamber. We will watch his brass life and obtain a custom die. It's shooting so well he doesn't want the confrontation with the gunsmith. I can say I would want a new barrel if it was me.
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