Since acquiring my M&P .40 back in April, all I've been firing through it is PMC Bronze 165/180 grain and Fedral American Eagle 180 grain. No problems whatsoever and can't go wrong with the price point on either

I personally found the PMC to fire a lot more cleaner than American Eagle ammo. When I find a gun shop that carries Speer Lawman at a reasonable price, I'm going to give it a shot from what I've been reading about it online.