I own one I bought a year ago. The firing pin hole is oversize. .093 and the primer bleeds back into the hole when you fire the gun. The throat is too short for a 142grain SMK bullet. My hunting partner also has one and has the same problems. His went back and they lengthened the throat for him but he didn't catch the firing pin hole problem until it was too late. He thought the short throat was causing the problem with over pressure as it would not except a factory round.
Now all that said both rifles are going back to Remington to have the problems fixed now that deer season is over. My hunting partner shot two deer at 250 and his gun performed flawlessly. I shot one at around 840 give or take and one at 550 give or take and was very happy with the accuracy of the guns. The problems with both rifles is easily remedied.