How do you pick the best ammo?

Federal Gold Medal Match is the "industry standard". If your rifle won't shoot that, it may not shoot at all. 168's are fine if you plan on shooting 600 yards and in, 175's if you plan on going farther than that.
 
Start with your twist rate and Google from there. You'll find what weight bullets will stabilize in your rifle. Once you know that order up some different ammo with bullets your rifle should like and see what shoots best, both at 100y and further away. If you can, measure the velocity and its deviation.
 
It'll say "Pretty Dang Good Ammo" on the box.



I'd start with a box or two of a few different kinds to see what your rifle likes best before shelling out for a whole case. Though with FGMM you're probably safe.

Thanks I'm gonna start with 168 for a couple boxes and then go to 175 as I increase distance
 
Start with a case of black hills or fgmm and when if it doesn't shoot too well sell it at a discount to me.

Really a box or two is fine to test. You don't want to get to committed if you don't know how it will shoot.
 
Start with a case of black hills or fgmm and when if it doesn't shoot too well sell it at a discount to me.

Really a box or two is fine to test. You don't want to get to committed if you don't know how it will shoot.

Hell in that case I'll buy a full case and liquidate it to you say 50 cents to the dollar! Lol
 
Unfortunately, the long leade in the AAC may not be doing you many favors with factory ammo. I'm loading 175 SMKs out to 2.925 COAL and I'm still not in the lands. Loading that long has improved the groups my AAC can produce though.

Sent from the U.S.S. Sulaco
 
If you are going to go longer range in the future, just go with 175/178 bullets. That way you will be used to the round and have good dope for it.

Federal Gold Medal Match, Blackhills Match, Southwest, Copper Creek, Hornady. All make good match ammo to try. But your best results will probably be by reloading and working up a load.