get the break and use the mid weight bullets, you can get the hornady superperformance to even further reduce the felt recoil (for what ever that is worth)
I might have another idea that you may like. If you are here, then you hunt coyotes. Why not get a Delcon AR, they are like $600 now, and then get another upper and build a 6.5 Grendal and load those up. Get the adjustable stock AR. Then get the check relief thing and set that so that it holds his head up right. Then he shoots 223 for coyotes with you, swap the upper and shoot the 6.5 on everything else, no real felt recoil.