Try 160 NABs with R22 and federal 215s.

I've shot that combo in 3 7RMs so far and all three were sub MOA. Took a bull at 325 with them and loved the performance. Also took a large mulie and large whitetail with them with outstanding performance. The 160 NAB has a good bc and yields good trajectory. Build up to 66grns of R22 and see how it shoots. 66 grns gives me an avg of 3080 fps from a 24" tube 700.

That would truely be a one load do-all set-up for him.

Good Luck

Reloader7RM