Nosler ROI Ds not feeding

Spartan8990

Private
Minuteman
Sep 18, 2022
2
0
South carolina
Hey guys I’m new to long range shooting so forgive my ignorance. I have a Uintah Precision 6.5 Creedmoor. I bought three boxes of off the shelf Nosler rounds today. One box fed fine with no issues. The last two boxes would not allow my bolt to close. I’ve tried Hornady and Sellier & Bellot ammo and had no problems at all (shot 40 rounds of each) any ideas?
 
Measure it.
Mark it.
See where it’s jamming.
Update: I have the rifle a very thorough cleaning and the rounds that didn’t feed earlier now feed. Except they’re very thought to seat a close the bolt. When they’re ejected I notice a ton of scratching on the brass. Picture attached
 

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Clean your chamber too.
^^^^^^^^

How did the new brass get dented like that?


That round you're holding looks more like a 6 CM and not a 6.5.
Could just be the image.
If it is 6 CM, you'd get shitty accuracy and probably dirty the shit out of the chamber too.