I agree the SMK will be better for any kind of bone hit. The AMAX is a hell of a bullet, it does blow up easy but for a long shot it will still expand a little as I have seen. I am planning on shooting this in my Cooper 6br this fall, i will lose a little to the berger but i will gain some expansion. the slightly heavier SMK will favor your twist, but if you go after real long range varmints like pdogs I would switch to the amax and load it around 3100 fps, shouldnt blow up then
steve