Barnes TSX Bullet Performance

I recently used Barnes TSX bullets (.270, 140 gr., 2700 fps) on an Oribi and an Impala. In both cases, the bullets performed very well. We were able to retrieve the bullet from the Impala; a one shot kill, and here it is. I've gravitated to Barnes because I sometimes hunt in California, where lead is not allowed. However, I prefer Swift A-Frames...