I have been saving up grey AA Handicap hulls for about a year. Yesterday, I reloaded 400 once-fired hulls and had a significant number of bad crimps...15 out of 400, and some were the worst crimps I have ever seen...marginally shootable. One wouldn't hold shot. Normally, I reload AA red hulls, STS's and Gun Clubs. I might get one marginal crimp per 100, but always shootable. I use a Ponsness Warren 800+, about 5 years old, with the original pre-crimp and final crimp fixtures. The problem occurs in the pre-crimp station. My observation was that with some of the grey AA hulls the open end had lost its previous crimp "fix" and was almost as round as the hull itself. I also wonder if the hull was of a less stiff material, and would crush rather than take a proper crimp. My feeling is that those hulls were that too open and round, at the precrimp station they were crushed rather than taking the pre-crimp. Have any others had this problem, and why are the AA Handicap hulls the culprit?