After trying 4 different powders with 75 gr Hornady, I tried 77SMKs.
The best I got out of the 75gr was a 1 1/4" 5 shot group with 8208xbr.
Working to the 23.1grains gave me a 3/4" 5 shot group @2630 with an extreme spread of 15.
I bracketed either side of the powder charge and got just over an inch with the extreme spread going to nearly 75 fps.
The best I got out of the 75gr was a 1 1/4" 5 shot group with 8208xbr.
Working to the 23.1grains gave me a 3/4" 5 shot group @2630 with an extreme spread of 15.
I bracketed either side of the powder charge and got just over an inch with the extreme spread going to nearly 75 fps.