How difficult is it to change the firing pin in a 700 bolt? Can it be done without any special tools? I sent my bolt (300 RUM) off for some work and when it came back there was no firing pin assembly. I called, shipped it back, 2 weeks later I had it back... Went to shoot yesterday and realized they put the "short" firing pin in (when I heard a click instead of a boom, no mark on primer). It was no where near the primer when in the fired position. Yes, it is screwed in all the way, was shooting with a buddy that also had a 300 RUM and we kept having to trade/switch the firing pin assembly back and forth (not the entire bolt)