I bought a .243 2 years ago and those are the first bullets I bought for it. When I went to the range I was extremely dissapointed on how my gun shot, the thing would not group for nothing at a 100 yds. turns out it was the ammo. I am shooting hornadys and group about an inch to an inch and half at 200 yds. so they didnt work in my gun at all. I also have now come to believe that rapid fragmentation is not good on big game. I like a bullet to go through a deer. Also if you hit bone it probably will be stopped. I wouldnt reccomend them for deer. coyotes go for it.