I have a RPR 6.5CM with aftermarket PRS stock, aftermarket seeking precision ambidextrous safety and a aftermarket LRI bolt shroud. Rifle functioned properly before (500 rounds down the tube) brought it out to shoot with my buddy today first shot of the day the bolt is stuck closed. It will raise straight up but will not move rearward. Bolt doesn't feel right when raised either. Using Factory Nosler 140BT ammo. Never showed any pressure signs before with that factory ammo and that's what I've been shooting a majority of the time (400 rounds). Any ideas? Wondering if the shroud or bolt itself got spun somehow? Nearest gunsmith is 90 minutes away.