Looking through some stuff I have and found a few Remington 3" slug hulls once fired that my sons apparently picked up for me when they were small (picking up brass at the range was a game they liked). Anyway, they are nice hulls, and I kind of have the itch to experiment with loading some heavy buck shot loads for coyotes, can the old roll crimp be star crimped?
I have a Lee Load All which works well on 2 3/4" hulls, not sure if it'll work on 3" or not, but I think I have a Lee loader around here that should.