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Rifles, Reloading, Optics, Equipment
Reloading
6.5-284 powder and case fill
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<blockquote data-quote="tim_w" data-source="post: 1451169" data-attributes="member: 11132"><p>I agree with Greyfox's comments.</p><p></p><p>I always prefer a case as full as possible for a number of reasons but the main one from a lr accuracy standpoint is ES. The further you shoot the more effect the vel spread has on accuracy and at extreme ranges can surpass all other factors than wind. </p><p></p><p>The first time I thought about low powder density I visualized the loaded catrdige sitting horizontal in the mag and chamber. All that space along the case body vs at the top when verticle. Further if the powder went forward a bit it could uncover part of the primer. Even without that just the idea of the the powder like that did not sit well with me. I invisioned weird things with how the pressure curve and energy built up and flow out of the mouth. </p><p></p><p>No proof of anything but .... I can say my most accuracte and lowest es that have nice broad nodes tend to have full cases. As long as I am not crushing long kernel extruded grains the fuller the better even using drop tubes if necessary but I prefer not to if possible than for no other reason it takes more time and care. I have done all sorts of crazy things looking for the best consistency. I've sieved ball powders before to get sligh changes in burn rate but more specifically for lowest es. Like I said things few people would or should be messing with. Idle hands and too much time to think etc..........</p></blockquote><p></p>
[QUOTE="tim_w, post: 1451169, member: 11132"] I agree with Greyfox's comments. I always prefer a case as full as possible for a number of reasons but the main one from a lr accuracy standpoint is ES. The further you shoot the more effect the vel spread has on accuracy and at extreme ranges can surpass all other factors than wind. The first time I thought about low powder density I visualized the loaded catrdige sitting horizontal in the mag and chamber. All that space along the case body vs at the top when verticle. Further if the powder went forward a bit it could uncover part of the primer. Even without that just the idea of the the powder like that did not sit well with me. I invisioned weird things with how the pressure curve and energy built up and flow out of the mouth. No proof of anything but .... I can say my most accuracte and lowest es that have nice broad nodes tend to have full cases. As long as I am not crushing long kernel extruded grains the fuller the better even using drop tubes if necessary but I prefer not to if possible than for no other reason it takes more time and care. I have done all sorts of crazy things looking for the best consistency. I've sieved ball powders before to get sligh changes in burn rate but more specifically for lowest es. Like I said things few people would or should be messing with. Idle hands and too much time to think etc.......... [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
6.5-284 powder and case fill
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