I am currently doing research for long range hunting with the A-max in my 308.
What I have confirmed through publication only ( have not taken deer with Amax yet) is that the Amax performs similar to the Berger VLD at SUB 2000 FPS velocity.
That means something different to you than I does me as Im shooting under 2800 FPS at the muzzle and I assume your much higher with you RUM.
Reports of close range Amax on deer are negative and say that at the close range velocity causes the bullet to "fragment violently" and not penetrate like a hunting bullet........we all know the Amax is not a hunting bullet.
I have also read the exact same description for the Hornady SST and I have put those through deer from 80yds to 397 yds with complete passthrough, and the ones past 300 yds have exit wounds similar size to the entry wounds.
SO just because someone else "did it wrong" doesn't mean you can't do it right, after research.
My personal conclusion is complete Bullet pass through is a WASTE of energy. I want my bullet to penetrate into the diaphram, (3" aprox)then fragment, shred, cause massive vascular trama, and cause nervous system shock leading to targets death ASAP. I could care less about grandpa's super important "blood trail" when the deer dies where I shot it.
My SST's print through the same hole as my Amax at 100yds and within 4 " at 300yds.
My intentions are to collect drop data for long range with my 178gr Amax and carry them at the ready in my magazine while my rifle is loaded with the SST's in the chamber in case I jump one close and need to fire quickly. If I spot a deer in excess of 300yds I will then cycle the bolt and have the Amax ready to go, dial in my adjustments and send one out there.
Of course once I shoot a deer with the Amax I will post the results.
I request you please do the same and lets put this whole "can't use Amax for hunting" thing to rest......... Enjoy.