I got my roll crimper today and over shot cards. Tried it out this evening I can see right away I'm gonna have to get a hull vice. I thought I could hold the hulls by hand, but there's no way. I tried some Rio unfired, skived, hulls with 1 oz. ITX 10 #4's, and some Fed GM hulls cut down to 2-1/2" and loaded with bismuth. Gonna try'em, hopefully, on some snow geese. So far I don't like it too good, but we shall see.