I've used Remington primers exclusively for the last 30 years. Never had a problem with one.
IME, most of the time misfires are caused by seating to shallow and the primer not "bottoming out" in the pocket, or seating too hard and crushing the priming pellet in the cup. Do any of your unfired rounds have slightly crushed primers?
And I looked, and behold a pale horse: and his name that sat on him was Death, and Hell followed with him. And power was given unto them over the fourth part of the earth, to kill with sword, and with hunger, and with death, and with the beasts of the earth.