I have been loading 2 1/2" 28ga on my 9000 since I got the press. I made a new crimp closing die by buying a new die, boring it out, straight thru, to 3/4" then taking the original die and turning it down to 3/4", and super-gluing it into the bored out die, but 1/4" lower.
It's my intention to do the same with a new 9000 press for 20ga, but it wouldn't be any different in a 16ga press, except boring it to 7/8". I don't think I could do it in a 12ga press, but I shoot 12 so infrequently, it doesn't trouble me to do them on a single stage press.
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