mo
Well-Known Member
No load data on 180 berger vld in 7wsm with re-loader 17 so I chronograph some rounds. I shot each powder charge twice just to make sure my numbers were right. This out of a 27 1/2 inch brux barrel. Temp was 95, and humidity was 100%.
55 grains velocity 2768
56 grains velocity 2795
57 grains velocity 2852
58 grains velocity 2869
59 grains velocity 2939
60 grains velocity 2979 (bolt a little sticky, light extractor mark)
61 grains velocity 3032 (heavy bolt flatten primer heavy extractor mark) to hot for me!!!
55 grains velocity 2768
56 grains velocity 2795
57 grains velocity 2852
58 grains velocity 2869
59 grains velocity 2939
60 grains velocity 2979 (bolt a little sticky, light extractor mark)
61 grains velocity 3032 (heavy bolt flatten primer heavy extractor mark) to hot for me!!!