I'm all for suppressed ARs, but you should probably get your hunting bolt guns threaded as well. My two main hunting rifles are both chopped, threaded and used suppressed exclusively. For an AR-15, I'd agree with everyone else that the 6.8 SPC and 6.5 Grendel are the best all around options. I hunted an 18" 6.8 SPC for a season several years back and knocked over a few deer. My load was 110gr Accubonds under a healthy load of AA2200 for 2,660 fps, and I was happy with the terminal performance. This year I decided I wanted another lighter weight hunting AR, and put together a similar setup, but with a 16" barrel in 6.5 Grendel. Haven't killed anything with it yet, but my short notice load development produced a good-enough-for-now load with 120gr Gold Dots @ ~2,400 fps. A quick zero check at the range confirmed I'm: ~1.5" high at 100 ~ 0.5" low at 200 ~ 10" low at 300 With a ~15 mph crosswind, corrections were 1.5", 5", and 11" respectively. I would recommend putting an adjustable gas block on suppressed ARs, getting them dialed in helps with recoil, port pop (and therefore dBs at your ear) and gas to the face.