Here's some recent 6x45 data:

20" D-tech upper, avg. temp 50 deg, Win once fired brass, CCI 400 primers, seated to mag length of 2.260

bullet, powder, grains, avg. velocity, 4 shot groups, notes
75 grain V-max, H-4895, 25.6, 2726
75 grain V-max, H-4895, 25.8, 2726
75 grain V-max, H-4895, 26.0, 2732
75 grain V-max, H-4895, 26.2, 2777
75 grain V-max, H-4895, 26.4, 2818
75 grain V-max, H-4895, 26.5, 2789, .3", outstanding accuracy and velocity uniformity
75 grain V-max, H-4895, 26.6, 2801, .6"
75 grain V-max, H-4895, 26.7, 2818, .6", primer flattening starting here in some loads, but no cratering in any loads
75 grain V-max, H-4895, 26.8, 2807
75 grain V-max, H-4895, 27.0, 2818
(settled on 26.5 load for the 75 grain V-max)
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75 grain V-max, Benchmark, 24.0, 2666
75 grain V-max, Benchmark, 24.2, 2666
75 grain V-max, Benchmark, 24.4, 2732, started seeing slightly flat and cratered primers
75 grain V-max, Benchmark, 24.6, 2666
75 grain V-max, Benchmark, 24.8, 2749
75 grain V-max, Benchmark, 25.0, 2737
75 grain V-max, Benchmark, 25.2, 2760
75 grain V-max, Benchmark, 25.4, 2789
(abandoned Benchmark due to erratic velocity data and primer pressure signs)



Load data on 85 grain Sierra Gamemaster HPBT to follow in a week or so.
_________________________
Regards,
Chris

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