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[st1650]

Oh wow ? Didn't think it would be that bad, N540 is my favorite powder for the 120 in the Grendel in a gasser with an adjustable gas block...

[st1650]

Have you found a good combo yet for 77TMK and N540. It was my plan, on paper it's the perfect speed vs BC vs terminal effects for a 18in 22ARC on a gas...