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kg of BM2 is good but still down on the speeds I expected, although possibly several other reasons for that, so it's standard process, will increase powder in increments, testing pressures until it...

Loaded 5 test rounds 223 with a old unknown batch of benchmark 2, noticed black discolouration of some of the kernels. first 2 shots didn't group, so put couple threw the chrono.
Said to the guys...