I think the action is very smooth. I shot it with the brake on it and did not care for the concussion at all. I ended up removing the brake and putting a thread protector in place. The recoil is very manageable in my opinion. I am not recoil shy, but I will get recoil induced headaches from shooting heavy hitters. The PRC doesn't bother me.
I have only shot mine about 40 times. A complete box of factory 143 ELDX, and I loaded up some 130 grain Tipped Game Kings behind a max charge of 4350. I have shot about 15 of those. I used 4350, because it was all I had at the time. There are better (slower) powders for the 6.5PRC. At this point, I consider myself unqualified to make any reloading recommendations.