imr-4320

  1. M

    What load data to use .308?

    This is probably a noob question, as I have been reloading for about 5 minutes. I am reloading .308 with 175gn Sierra HPBT and seeing significant max load recommendations between different sites. I currently have 2 types of powder IMR-4320 and VihtaVuori N550 N550 Berger reloading book 46.6gn...
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