Herb in pa
Member
First attempt with this mould. Only shot 5 shot groups @ 50 yards as proof of concept. Bullets came in @ 70 Grains and were sized to .245. Reloader 7 was the powder choice along with Winchester SRP's. I increased the powder charge in .5 grain increments (which I know is a great increase fo such a small case) to try and get a feel for what it liked. Group 1 measeured . 425" (4 shots) with 17.5 grains, Group 2 .850" with 18 grains, Group3 1.391" wit 18.5 grains, Group 3 1.391 with 19.0 grains, Group 4 1.392 with 19.0 grains, Group 5 .979" with 19.5 grains, Group 6 .813" with 20 grains, and Group 7 2.897 with 20.5 grains. Going to test again in the 17-18 grain range @100 and also 10 the 19 to 20 grain range. '