Example of one is almost meaningless. Something could have been fugged up in the reloading process, like a technition picking up a core after just having eaten greasy nachos.

Occasionally the alloy of a coil of core wire can vary from one end to the other. Same with the jacket material. Nosler is very consistent but it does happen. Barnes was plagued by changes in the alloy material early on and it wasn't until they switched suppliers that they eliminated this. These problems still follows them today with rumors of bad bullets or penciling through.

"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli