Is it possible to jug choke a 12 gauge cylinder bore/cylinder choke Damascus barrel to achieve an IC choke? Currently both barrels are cylinder bore and I'd like to tighten up the left barrel. All comments would be appreciated. Thanks.

that would depend on the wall thickness I expect

have you thought about experimenting with reloads and wads -

Wall thickness is .730, which I understand is within specs for a 12 gauge barrel. Not a reloader and only familiar with spreader shells. Have only used RST low pressure shells in this gun.

Something's wrong with your measurements or your typing.

You typed .730 as the wall thickness... That's impossible - .750 is 3/4 of an inch...





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is that the bore diameter ?

about right for a 12

this is a interesting subject of jug chokeing...i m temted to try this myself on a 8 gauge gun...mine is clyinder bore alsoi wonder how many thosands do i need to hone out and about how far inside of gun barrel do you hone it out...charlie

.730 bore diameter

Unless the precise barrel wall thickness is known along the muzzle end of the barrels for about the last 10" or so, it is not advised to consider "jug choking."

This process involves the removal of metal from the barrel wall to create an enlarged "chamber " area just short of the muzzle. The shot charge expands into this "jug" and is then constricted again toward the muzzle end of the jug, effectively creating choke. How much choke depends on the diameter differential between the inside of the relieved jug portion and the remaining original barrel tube.

Jug choking is NOT a job for the home hobbyist.

In any case, the jug section THINS the barrel wall. Albeit in a very low pressure area.

Personally, I dislike jug chokes. And I've found them only marginally effective, and that modern shot cup wads and cylinder choke are all I need to hit with confidence at virtually any reasonable distance.

I am not a fan of modifying Parker chokes. My vote, leave it alone.

Ballistic Products sells 12 gauge wad shot cups designed for long range shooting. I've seen data showing a five to ten yard advantage in holding the shot charge tighter . Try it.