This year was my first time using an AR for deer and I opted for locally bought Fusion 62gr after reading some other positive reports. I didn't shoot too many rounds for my 100 yard zero but accuracy was OK at 1.5". It could possibly be better under better/calmer circumstances.
The buck was 85 yards away and the I fired two shots. The first hit the shoulder/spine and I thought he was down but when he got back up a couple seconds later I put another into the neck. I didn't recover the neck shot but neither bullets exited.
Next time around I'd like to use my 12.5" SBR with Barnes 70gr TSX or switch up to a 300 BLK or 6.8 SPC for more compactness and less weight.
Palmetto State Armory currently has the MSR version on sale for $10 a box.
http://palmettostatearmory.com/catal...view/id/13744/