Trimming is a normal necessity when forming cases. They are seldom perfectly square. It actually does not make any difference unless you are preferring a crimp operation then it's essential.
I have gas leaking back due to the neck/mouth not sealing completely, just load it again. If that don't work I make .300 GNR or Herrett cases, maybe .401 Herters.
I lately finished Doug's .280 GNR cases for Africa. The formed cases all had uneven mouths. I picked the shortest case and made all that length. A box of jewels, all trimmed and the exact same length. 160 gr. Accu-bonds ready to go.
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Did a bunch of fireforming and some shooting
- O’ Gary, 2018-03-10, 14:53
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Hour-glass cases, hit them again. It'll blow out.
- WB, 2018-03-10, 16:26
- You bet. I moved the calipers down to - O’ Gary, 2018-03-10, 17:59
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Hour-glass cases, hit them again. It'll blow out.
- WB, 2018-03-10, 16:26