Re: Hunting w/140 A-Max in 6.5mm
If concerned about penetration at impact, go with the 140gr SST. This will provide you with an accurate hunting bullet that will penetrate at those velocities. Also, the BC should be higher then the Amax giving more retained vel and energy at impact.
My steel targets at 600yds show some very nice craters from Saturdays testing. It should have no problem if it encounters a shoulder.
You might have to back down your present load a bit as these SST's are longer - longer bearing surface.