I’ve been getting my final loads together for an upcoming Buffalo hunt. My go to recipe is a 475 gn CEB Safari Raptor and RL 15 going 2400 +/- FPS out of my 500 NE. It regulates perfectly and has served me well on several hunts. I’ve been seeing a few guys on here talking about the 570 gn Swift A frame so I decided to load some up and give them a try. The 2 shot group to the the left is the A frame going 2190 fps. The CEB load is the more centered vertical group. Normally they look like the A-frame group but my dog crossed under my line of fire as I touched off the second shot. I originally tried an A-frame load and wasn't impressed. After reviewing what others were saying, I decided that I may have not pushed it hard enough. So I bumped the powder charge up 2 grains and it really came together. Both groups were shot at 50 yards. This gives me something to think about, either load should work fine.
