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Rifles, Reloading, Optics, Equipment
Reloading
2 Questions: brass(Nosler vs Lapau) and neck tension
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<blockquote data-quote="scottishkat" data-source="post: 973512" data-attributes="member: 82202"><p>So the only thing I notice that is significantly different is neck tension. While seating a bullet in the new brass vs fired brass the tension is significant. </p><p> </p><p>1. I have heard Nosler brass does not handle pressure as well as Lapau and there fore I may not be able to get to desired charge levels without seeing a bit of pressure. True or False? </p><p> </p><p>2. Neck tension is generally believed to be best at .002. Is this still the correct rule of thumb?</p></blockquote><p></p><p>I would not think that a neck tension differential of .001 would make a significant pressure difference. Have you checked the case capacity of your Nosler brass which is made by Norma? Reduced case capacity would make a difference.</p><p></p><p>Generally speaking it has been my experience that Lapua brass has less case capacity than all others but there are differences batch to batch. You can try to weigh your brass once it has been trimmed and sized in the same manner. Or you can check the case capacity with water. Lesser case capacity will create higher pressures and high pressure symptoms with loads near max.</p><p></p><p>Also if you may notice higher velocities with a lesser charge because of said pressure differential.</p><p></p><p>Good luck and shoot straight. Especially with the 6.5x284.</p><p></p><p>Bob</p><p>[/QUOTE]</p>
[QUOTE="scottishkat, post: 973512, member: 82202"] So the only thing I notice that is significantly different is neck tension. While seating a bullet in the new brass vs fired brass the tension is significant. 1. I have heard Nosler brass does not handle pressure as well as Lapau and there fore I may not be able to get to desired charge levels without seeing a bit of pressure. True or False? 2. Neck tension is generally believed to be best at .002. Is this still the correct rule of thumb?[/QUOTE] I would not think that a neck tension differential of .001 would make a significant pressure difference. Have you checked the case capacity of your Nosler brass which is made by Norma? Reduced case capacity would make a difference. Generally speaking it has been my experience that Lapua brass has less case capacity than all others but there are differences batch to batch. You can try to weigh your brass once it has been trimmed and sized in the same manner. Or you can check the case capacity with water. Lesser case capacity will create higher pressures and high pressure symptoms with loads near max. Also if you may notice higher velocities with a lesser charge because of said pressure differential. Good luck and shoot straight. Especially with the 6.5x284. Bob [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
2 Questions: brass(Nosler vs Lapau) and neck tension
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