temperature sensitive

  1. Big-bore-bob

    Hp38 and bullseye temperature sensitivity

    Hi all, I loaded a butt load of 45 acp rounds some with bullseye and some with hp38. 230gr zero fmj at 1.255, win lpp. My velocities with the bullseye 5.0gr avg 850. Hp38 5.4gr velocities avg 837. I chrono'd the rounds today, temp was 37 degrees F. Will these rounds chrono higher when summer...
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