I have tried them and couldn't ever get them to shoot in any of my rifles. I believe one of the reasons for this is the length of the bullets, they are much longer for the same weight bullet. This requires more twist to stabilize them but I think it also has something to do with the balance of them in flight. I even tried them in some faster twist barrels, I still couldn't get them to shoot. I have talked to guys at our club and haven't found anyone who could get them to shoot either. I have heard many theories on why but I'm not sure of the real reason or if there's a trick to loading them.