Roll crimping Federal paper
I'm hoping someone might be able to give me a little advice. I just picked up some Federal paper hulls that I plan to roll crimp. I tried some practice crimps with my usual drill press mounted crimper, and a couple of my antique hand operated bench closers, and didn't have very good results. The mouth of the shell that has been previously fold crimped seems to have been weakened, and when I try to roll crimp it it wants to collapse upon itself. To me it seems like it needs to be retreated with wax somehow to stiffen it again.
I thought about trimming them, but I will be loading with black powder and card wads in a gun with 2 3/4" chambers and don't want my cards to jump a 1/4"-3/8" gap if I can help it. Anyone have a trick for roll crimping these hulls?
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