I use what shoots best in my rifle. For elk red box 180gr in 30-06! And 250 gr Grand Slams that I hoarded, in my .338 wm! Never lost an animal. I do like two holes but don't always get that with the 30-06. This and I have never had a barnes bullet the would group good in my elk rifles. After lots of trials I gave up on them. The barnes work great in the wifes .243, and shoot bug holes! We all have our own experiences.