I use it in my 26" 7mm rem mag. Barrel gets awful hot so my 425yd groups is 4 inches but think if I slow down shooting I can do better. I like it and have no extraction probs. 42.99 is a bit steep I suppose but I was paying same for Hornady Heavy Mag 139sst ammo. I think the HSM shoots better. I also shoot their bulk ammo in wifes 30-06 and my 7mm rem mag and it's pretty good too but just BTSP.