I own the same rifle. It loves the 100 gr. Nosler Partition, and so I've never really needed to try anything else. I shoots sub 1 inch groups, and the load I use has been chronographed at 3,785, which is just fine with me. I've shot five mule deer bucks in Montana with it, all died quickly after one shot. As a mule deer/pronghorn cartridge, well, I don't know if there is something out there that is better.
