I am using 4.2gr on AP-70N loaded to 1.06" COAL using PMC cases and Federal No.100 primers with the Rusa 124gr FP.
Average velocity of 1065fps, PF of 132 (ES of 10, SD of 4.2).
I am probably going to try 4.1gr next load test and see if I am still making minor PF.
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