I loaned this rifle to my brother and he brought it back saying is had 3 rounds that did not fire when he pulled trigger. He lifted bolt to cock and tried again and no fire, removed round and firing pin had not hit primer. The pin dropped he said and made a noise of doing so. I cannot duplicate the problem. Cleaned bolt assembly and it was clean as a whistle. Has any one had issues with this at all? Seems to me that someone said one time that if trigger was pulled while on safe the taken off safe and pulled there were issues but cannot find anything is search.
Any ideas?

Justin