I'm trying to work up some 6.5 creed loads, one is 130 Norma golden + H4350 and the other 145 Match Burner + 6.5 Staball, and did a charge weight ladder the other day only to find that for each combo my largest groups where all in the velocity flat zone. Each grouped well on either side of the flat spot (~< 0.5 MOA) but in the flat zone they spread out to 1+ MOA with some a sizable vertical spread. These tests were done at 200 yards.
I haven't done a seating depth test and that is next but before I waste precious powder and primers I thought I'd ask for a second opinion as to whether this is just bad luck and can be corrected with seating depth or whether something else is going on.
I haven't done a seating depth test and that is next but before I waste precious powder and primers I thought I'd ask for a second opinion as to whether this is just bad luck and can be corrected with seating depth or whether something else is going on.
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