458

  1. W

    458 SOCOM FTF - headspace?

    Went to the range with a dozen loaded 458 SOCOM (new Wilson Defense AR build kit-barrel, bolt & carrier). New Starline brass FL sized with Lee Die, CCI 350, RL7, Hornady 325 FTX. 5 of the 12 failed on first try, examined one and it looked like it had a very light firing pin ding. 2 of the 5...
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