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Rifles, Reloading, Optics, Equipment
Reloading
Neck size tension?
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<blockquote data-quote="RAT807" data-source="post: 1360221" data-attributes="member: 33244"><p>My experience with Nosler brass has been it's not as consistent as Norma. The weight and thickness vary more which adds to the velocity swings. Case wall thickness variations and a health dose of power can leave the case in the shape of a banana after firing. I also noticed when shooting ladder tests, an increase in charge weights of .5 grains, the velocity would swing up and down. It didn't steadily increase as it should because of varying neck thicknesses. I could also feel some cases took more effort to seat the bullet. </p><p></p><p>I added a Hornady concentricity tool and a case neck thickness kit to go with it to check all my brass. I've had an RCBS neck turner so I should be set in an attempt at more consistent neck tension.</p><p>Nosler had many more necks that thickness varied .002 or more than the Norma brass. After turning the necks to have .001 or less neck variation, velocity was more stable and accuracy improved. I could bore you with many more details but it took more brass prep to get the Nosler cases shooting consistently and the Norma cases still shot more accurately. </p><p></p><p>Buy more brass than you plan to use. Weight sort or sort by neck tension and discard the inconsistent pieces and Nosler will do just fine. But Norma has proven better in my .280 and .264 mag</p></blockquote><p></p>
[QUOTE="RAT807, post: 1360221, member: 33244"] My experience with Nosler brass has been it's not as consistent as Norma. The weight and thickness vary more which adds to the velocity swings. Case wall thickness variations and a health dose of power can leave the case in the shape of a banana after firing. I also noticed when shooting ladder tests, an increase in charge weights of .5 grains, the velocity would swing up and down. It didn't steadily increase as it should because of varying neck thicknesses. I could also feel some cases took more effort to seat the bullet. I added a Hornady concentricity tool and a case neck thickness kit to go with it to check all my brass. I've had an RCBS neck turner so I should be set in an attempt at more consistent neck tension. Nosler had many more necks that thickness varied .002 or more than the Norma brass. After turning the necks to have .001 or less neck variation, velocity was more stable and accuracy improved. I could bore you with many more details but it took more brass prep to get the Nosler cases shooting consistently and the Norma cases still shot more accurately. Buy more brass than you plan to use. Weight sort or sort by neck tension and discard the inconsistent pieces and Nosler will do just fine. But Norma has proven better in my .280 and .264 mag [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Neck size tension?
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