I purchased a beretta 682 barrel with mobile choke that has been backbored to .740 it only came with one (.022 constriction ) choke tube who would you use to make a couple for it? Thx Jerry
I competed with 682 Sporting,which is considered a "competition model" which was fitted with custom tubes from Kolar. This gun has Mobile Choke barrels with a bore of .723.There are some details on the internet stating that some of the Beretta 682 models e.g. "the competition modes" were available from the factory with the larger back bored barrel sizes ???
Your new starting point is that "you need to be sure" that you either have "factory over bored barrels" or "aftermarket gunsmith over bored barrels" You need to know that first ?
(standard bored Beretta 682 factory barrels measured 0.722 to 0.724) with the "completion barrels" being up to 10 to 18 thousandths larger.