agksimon
Member
Tested my M&P22 pistol with two types of CCI Mini-Mags, 40gr solids and 36gr HP. The results are just the opposite of what I expected. Sandbagged off a bench at 25 yards: 36gr HP consistantly averaged 2"+ groups and the 40gr solids averaged 3.5" groups. I tried full 12 round mags of each, four times each. It was really a surprise. You could actually feel a slight amount of greater recoil with the 40gr, which also surprised me.
The Federal Champion short cycled the slide so many times, I quit using it. Too many low powered rounds I guess. Remington Golden cycled fine, but groups were around 6".
I also ran the ammo over a chronograph and The CCI Mini-Mags had a standard deviation of around 33FPS, where the Reminton Golden averaged around 127FPS. That's why the groups opened up.
The Federal Champion short cycled the slide so many times, I quit using it. Too many low powered rounds I guess. Remington Golden cycled fine, but groups were around 6".
I also ran the ammo over a chronograph and The CCI Mini-Mags had a standard deviation of around 33FPS, where the Reminton Golden averaged around 127FPS. That's why the groups opened up.
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