Yes, definitely won't use that anymore. Just curious as to why this would happen. Same size/shape/weight bullet as the other load, not sure what would cause the bullets to tumble. I've heard of it happening, just not with me.
Actually, I've got an old Marlin lever 22mag that won't stabilize hotter loads. Seems the micro grooves are not aggressive enough to grab the bullet and apply twist if they are moving too fast. They would spray all over the place. With different loads it would hold 5/8" groups at 50 yds with ease.
