I must just be having a string of bad luck then. While I have had good results with 178 grain AMAX's from the .308 win, the 105's in the .243 are the only other AMAX's I've shot at game with.
It does indeed defy logic that this bullet would not be performing any better for me. I'll not give up on it, but I'll probably have to wait for spring before I get to try it out on varmints again.
I will say that it is quite accurate. Prone from a bi-pod with a rear bag, they look good at over 1000 yards...
Practically no brass prep on that 7 shot group. Five shot groups at 1000 yards have looked even better.