Are you using the x10x gas seal beneath the wad? They are approximately 1/8" thick? It looks like maybe too deep pre crimp by the marks in between the folds and with crimper set a bit too deep will cause the folds to swirl,grabbing too much of the hull to fold in.If on a Mec loader,raise the cam up a little.And with not enough filler this can easily happen.I have also used a 10 gauge hard card beneath the wad instead of the gas seal.It takes up about the same space and does the same job but this test was done with gas seal.One way or another you need a little more filler and adjust your crimper a little higher,or lighter.If you can't get it figured out ill dig out some components tomorrow and see exactly what is needed. The shells I loaded crimped nice.I don't remember if I loaded them on a Mec,or a PW. They both load nice shells.Jeff.
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