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?