choke constriction-HD
With all of this talk of opening chokes on HD guns I got out my 1940 30" solid rib gun this morning and measured it. Bore is .730. Choke starts 3" from muzzle and ends with a 3/4" long parallel .693 at the muzzle (.037 constriction). Is that about correct for that era Heavy Duck?
Thanks, Joe
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