clearwater
01-27-2024, 12:31 PM
Had a chilly range day. -5 F. Chrono battery died for the last shots. It was good to get out tho and bright sun on the target.
Using 240 grain plain base, Brinell 15, had some consistent velocity results. 12 FPS spread over 6 shots with 11.5 grains IMR Green. 1188 fps average. 2.25" group that widened to 2.45" at 10 shots. Should be about the speed of sound in warmer temps.
Also 3 loads with some Unique (old batch from the 70's) for comparison. 13 grains. 2" group. 7 fps spread. Average 1233 fps.
Very fun to lob large bullets. Pretty happy so far. Should I be trying different velocities?
Really like my Chargemaster Link for these flake powders.
Using 240 grain plain base, Brinell 15, had some consistent velocity results. 12 FPS spread over 6 shots with 11.5 grains IMR Green. 1188 fps average. 2.25" group that widened to 2.45" at 10 shots. Should be about the speed of sound in warmer temps.
Also 3 loads with some Unique (old batch from the 70's) for comparison. 13 grains. 2" group. 7 fps spread. Average 1233 fps.
Very fun to lob large bullets. Pretty happy so far. Should I be trying different velocities?
Really like my Chargemaster Link for these flake powders.