I put a 14" hand made choke on the end of a 22 and it increases the effective range from 8-10 yards to about twice that distance.
Obviously, with # 12 shot, the closer the better because that stuff is about the size of salt grains.
I use that for rattlers when I find them around the house.
I never thought of building a choke!
Well... now I have some bad news for the wife. Clearly I require a .22 with a threaded barrel. It’s a safety issue.