Just got home from the range, had to test out my new M&P40c. I shot two different reloads, one was Xtreme 180gr plated bullets with 3.8gr WST, the other reload, which produced the holes, was Frontier 180gr CMJ with 3.6gr WST. For some reason, the Frontier bullets made the ragged holes, which I assume means the barrel couldn't stabilize the bullets, right?
They all cycled just fine, so I assume the velocity was high enough, but what would cause this from a pistol, I've never seen it before. Even when I was shooting rounds that weren't even powerful enough to cycle the slide in my Glock 23, they never produced ragged holes.
Look at the head and groin area of the target. Those are the ragged holes I'm talking about. They were shot at about 20yds.
Thoughts?