Oh yeah, bullet seated WAY out, making the OAL too big to chamber it. But that's still a lucky defect, the other way around it would have blown his gun to bits, meaning if the bullet was seated too far in. In such a tiny case seating the bullet a little further in increases pressure DRAMATICALLY.
I have heard of such cases, but the bullet wasn't seated to deeply in the case, instead the bullet was seated rather loosely and when the gun cycled and the bullet hit the feeding ramp it was pushed all the way in only stopped by the powder charge. Not good. 
That's also a good reason not to take live ammunition and chamber & eject it a million times, the bullet seating depth will increase and pressure will rise.
Last edited: Mar 22, 2020