Same here.....when I first got it after they game came out, I was like "whoa this gun is ridiculous" dropping people left and right while shooting them once in the leg/toe. I only get hitmarkers with the barret. 50 cal if I hit someone who is laying prone behind cover with only a piece of leg sitting out. Then I thought to myself give it a few weeks and everyone will be using this gun or bitching about it. I got it gold, moved on, and have tried to go back numerous times only to not do as well as I originally did. I haven't had it gold since my first prestige, and really only use the mp-7 (spent first token on it) with range on larger maps, AA-12, p-90, FAD (unlocked after  2nd prestige, fell in love with it), barret .50 cal, and the rsass when I unlock it even if it's really inconsistent. I'm surprised not many ppl ***** about the acr.....no recoil and kills sometimes in 2 well placed shots above the shoulders. Many games I've re-watched in theater thinkin someone was using damage glitch or chalking it up to them using Hollow Points deathstreak, only to find out that that's not the case. I know it should kill in 3-4 shots depending on the stats and range, but damn it feels as if that is off.....