Going through the whole drill, I full length resize the case, trim to minimum length, uniform the primer pockets, deburr the case mouth, and then deburr the flash hole. After firing, I neck size, which keeps the case from growing too much, and trim to minimum length once again. I do not have to trim for the next several loadings, but I full length resize every 4th firing. When I get close to max length at this point, I will trim to minimum once more and then will usually get 4 firings and its time to toss it. BTW, I think its RCBS which now offers a sizing die they claim keeps the case within SAAMI dimensions, but I have not tried it-has anyone else?
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