RE: 7mm rem mag factory ammo
I agree with the previous posts. I use Fed Premium Ballistic Tip for whitetails and Nosler Partitions for larger game.
I got a better group with the Noslers but the Ballistic Tips shot a 1" at 100 meters and little more than 1 and a half at 200.
Advice: Don't go cheap on the ammo, buy the best you can.....