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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Help with BC calculation
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<blockquote data-quote="Mysticplayer" data-source="post: 35225" data-attributes="member: 8947"><p>Yes, that is the correct load and yes, it is toasty. I know it is not above the vel I have listed simply because of comparisons to other 'sister' cartridges - 25-06 and 270win. Plus my chronograph has been used to measure other rifles and are ok.</p><p></p><p>The loads listed in the Hornady and Nosler manuals have a much lower pressure then is achieveable. They are using the '06 limits, not the 270/magnum limits.</p><p></p><p>I am loading to the 270 pressure levels and getting similar vel when comparing relative bullet weights and powder consumption.</p><p></p><p>The rifle only has a 24" barrel. I am not going to exceed 264 ballistics using a shorter barrel and a lot less powder. Pressures are at 270/magnum not insane levels.</p><p></p><p>Let us know how your testing turns out. </p><p></p><p>Jerry</p></blockquote><p></p>
[QUOTE="Mysticplayer, post: 35225, member: 8947"] Yes, that is the correct load and yes, it is toasty. I know it is not above the vel I have listed simply because of comparisons to other 'sister' cartridges - 25-06 and 270win. Plus my chronograph has been used to measure other rifles and are ok. The loads listed in the Hornady and Nosler manuals have a much lower pressure then is achieveable. They are using the '06 limits, not the 270/magnum limits. I am loading to the 270 pressure levels and getting similar vel when comparing relative bullet weights and powder consumption. The rifle only has a 24" barrel. I am not going to exceed 264 ballistics using a shorter barrel and a lot less powder. Pressures are at 270/magnum not insane levels. Let us know how your testing turns out. Jerry [/QUOTE]
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Help with BC calculation
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