Would somebody please tell me the proper method of patterning a .410.
I remember reading somewhere that the .410 is patterned at 25 yards. (somewherer else I read that it was 30 yards).
I think I also read, that the circle drawn around the densest part of the pattern, was 20 inches, instead of the usual 30 inches.
I am trying to determine the true chokes of the gun.
Pete