I’ve had a Reaper for a week now and I’m very happy with it.
It’s a little louder than my ultra 9, to be expected, but not a huge difference. The suppressor does get hot much, much, faster than an ultra 9. It seems that a suppressor cover will be required for non-hunting situations.
I also picked up SRS’s brake for the Reaper. I’m not sure the recoil reduction is worth the sharp crack it adds. The recoil reduction is very, very, subtle shooting prone with a 7 PRC. I’m going to do some shooting from a tripod, that should really highlight the brakes effectiveness.
I’m not seeing a point of impact shift between the brake and regular end cap.
Edit: after doing some shooting from a tripod, the brake clearly reduces recoil in a significant way on both the 7 PRC and a 6.5 Grendel.