"Unfired" is out the window before sale, when the rifle is test-fired. Seems silly to even describe a new firearm as "unfired". Never mind doing so with something purchased second-hand.
NIB is, at least, possible.
I agree sam. I also agree with Pocono. He hits on some good points and areas to look at and evaluate when buying a used rifle. I've looked at nice (on the outside) pre 64 model 70's that had terrible bores. I simply hand said rifles back and move on to the next one... Bolt face is often the dead give away as well... But to say and describe something as "unfired" is simply silly, as we all know they are test fired from the factory..
