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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Problems w/Norma ammo - need advice
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<blockquote data-quote="LoneTraveler" data-source="post: 2056882" data-attributes="member: 77249"><p>Sounds like something wasn't right when Norma assembled the ammo.</p><p>The only thing I could think of as far as transportation that could be a problem would be, Vibration breaking up the powder grains. With having a big variance in the same box should rule that out. </p><p>The best thing would be, Take them apart into components, Check the bullet diameter, Check the powder weight and make all loads equal weight. </p><p>While you have them apart, Change the primers. Dealt with a rifle one time with hand loaded ammo. Every few shots 1 would drop 4 inches low and right. My brother thought it was his error. We ran some loads through a chronograph, 4 of the group was in a tight group within 15 FPS at 3000 FPS, 1 went 4 inches low right, It dropped to 2700. Changed primers and the problem disappeared.</p></blockquote><p></p>
[QUOTE="LoneTraveler, post: 2056882, member: 77249"] Sounds like something wasn't right when Norma assembled the ammo. The only thing I could think of as far as transportation that could be a problem would be, Vibration breaking up the powder grains. With having a big variance in the same box should rule that out. The best thing would be, Take them apart into components, Check the bullet diameter, Check the powder weight and make all loads equal weight. While you have them apart, Change the primers. Dealt with a rifle one time with hand loaded ammo. Every few shots 1 would drop 4 inches low and right. My brother thought it was his error. We ran some loads through a chronograph, 4 of the group was in a tight group within 15 FPS at 3000 FPS, 1 went 4 inches low right, It dropped to 2700. Changed primers and the problem disappeared. [/QUOTE]
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Problems w/Norma ammo - need advice
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