Ruger 15151
Member
Today I was doing some load development for my 9mm Glock (Storm Lake Barrel) and 9mm M&P CORE (Storm Lake Barrel). Both groupings where shot with 5.2gr (Glock) and 5.4gr (M&P) of BE-86 behind an Extreme 124gr RN . I was using a pistol rest and distance was 15 yards. I have a Trijicon RED dot on both so sight picture issues should be eliminated.
Also, I shot at least 2-3 groups with 5 different loads for each pistol so my technique shouldn't be the issue. I have read that M&P 9mm's sometimes unlock early. However, I got a similar string with the Glock as well. I know BE-86 works great in 9mms because I get 7/8" groups with the Glock at 15 yards with a 115gr ZERO FMJ-HP behind 5.2 gr of BE-86.
What is causing these strings from both pistols?
Also, I shot at least 2-3 groups with 5 different loads for each pistol so my technique shouldn't be the issue. I have read that M&P 9mm's sometimes unlock early. However, I got a similar string with the Glock as well. I know BE-86 works great in 9mms because I get 7/8" groups with the Glock at 15 yards with a 115gr ZERO FMJ-HP behind 5.2 gr of BE-86.
What is causing these strings from both pistols?
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