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Thought I'd post up a report.
I got a sample pack from a member here. And did some real serious load development last night.
I chose H4895, because I have plenty. Seated some 63 Sierras to fit in the magazine and tried them out this morning.
They did this at 200 yards.
I know I missed the quarter, but do you think by playing around with the seating depth, adding or subtracting a few grains it might work.
That will work. Go kill chit.