Finally was able to put a few rounds through it the other night before the sun went down. Shot pretty good, felt good. I shot some factory loads and some light reloads I had. The only issue was that on the heavier factory ammo, the percussion would knock the forearm off. Not sure why, couldn't figure it out. It locks up tight otherwise, at least I can't make it come off without pushing the button down. I made sure my hand wasn't bumping it while shooting. Anyone have any thoughts on it?