cci 550

  1. Big-bore-bob

    Xtp hollow point vs. Xtp flat point consistency differences in .357 magnum

    Hello all, Had a testing session this weekend with several loads for my .44 mag and .357 magnum smith's. For the .357 686+, 4 inch barrel, using 158gr xtp hp's and fp's over 15.5gr h110, cci 550, coal 1.575, starline brass, I recorded a large difference in SD and ES between the two bullet...
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