So after the original powder test IMR 7828 and H4831SC 7828 coming in at .600 moa 4 shots and H4831 SC at .394 moa 5 shot group
We wanted to just shoot a couple groups with those two best performing powders and also from the OCW test it appeared nothing was spectacular but we wanted to try 4831 again at 42.5 because of the .394 moa group with a different primer. Russ and I trade off on shooting groups to make sure results are spread out between two shooters. I took some of my loading gear over to Russ' place and found out that my powder scale was off at his place because of the elevation. Good tip if your moving gear from one to the other
Tested
7828 43.5 grains .578 moa 4 shot with a 34 ES
7828 44 grains .687 moa 4 shot with 3 rounds only 7 fps apart 53 ES
H4831 43 grains at .800 moa 4 shot with a 31 Es 210 M primer
H 4831 42.5 grains 1 moa 5 shot 4 within .350 moa BR CCI was not chronographed
I think one of the big issues I have always had with reloading is consistency. One day your rounds and gun shoot very well and the next its different. It gets frustrating. After this test, its still nothing great and extreme spreads are not where we wanted them to be and we couldn't duplicate the .39 moa group
