2-Piper, I just measured a few Bakers in 12 ga. with a Brownell's chamber gauge, machined to .796" diameter at the end. I found that most of the trap guns, circa 1909-1919 measure 2 1/2", but one measured 3". Measuring A and B grades and Paragons, most are 2 3/4" chambers. No one knows which chambers could have been altered. I am puzzled that the later trap guns would show short chambers.

Last edited by Daryl Hallquist; 06/09/16 01:32 PM.
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