If it's just deer, go w/the 162 amax. Much higher BC. But then again if he's only going to be shooting 500 yds, that higher bc won't help him as much as it would further down range. If he loads the accubond he will have a catch all load and could use it for just about anything on this continent.
this is comparing apples and oranges, the A-Max is a thin skinned target-varmint bullet and the accubond is a bonded big game bullet. if you are only shooting to 500 yds on white tail varmints try the 168gr Berger it has the best B.C.in its class and shoots more accurate in the guns I own than any hornady.
It takes 43 muscle's to frown and 17 to smile, but only 3 for proper trigger pull.
If impact velocity is going to be over 2800fps, I would not suggest the Amax for anything other then broadside. It will come apart.
I am shooting a 7RM. For close shots, I will be using the 162gr SST. For my longer shots, I switch to the Amax. In my rifle, both bullets shoot in the same line but to different elevation.
I just adjust using my scope for the bullet and range I am shooting.
I have used the Interlocks and SSTs for all my hunting and they have never failed to impress me with their accuracy, expansion and penetration. The SST will have no issue surviving a 3000fps impact and making big damage on your game.