Nosler brass issue, bullet won't seat

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This is one of the factory new Winchester cases that I had trouble with. Once I realized the neck tension would not work, I tried to pull the bullets. The collet puller would only slip and cut the jacket on some, so I used a crimp plier to grip the bullet above the press threads. It pulled the whole core of the bullet out of the jacket leaving the base of the jacket in the neck.

Annealing made those necks nice like factory should be. Sizing was easy then and seating was very normal.
 
I contacted Nosler they were very helpful and told me to send a few samples in and the guy said he would personally walk them down to the lab and figure out what's going on and get right back to me.
 
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