You don't have bad luck... you have a guardian angle watching over you. Your lucky that nipple did not fly out and hit you in the eye or something. There is no excuse for that kind of thing to happen in a new rifle.

Some people make the mistake of the wrong nipple. There are different size thread for certain nipples. T/C and Knight are one size, Lyman and Cabela's are another size, and CVA and Traditions threads are still another size.

Although if this was a factory nipple, there is no excuse for this to happen. I would be on the phone screaming at who ever made that rifle.

I personally know of one case where a person got a good gash/cut on the side of their head from that exact same thing.