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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
270 weatherby bullet choice
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<blockquote data-quote="150pilot" data-source="post: 766443" data-attributes="member: 43421"><p>Someone had asked if mine is an FN action, I think not, it's all Mark V with the 9 lug bolt, but a 1967 and clearly marked made in Germany. That definitely put it in the 1-12 twist camp. Hence the original questions about twist.</p><p></p><p>I bought some Hornady 270 130 grain SP interlock bullets to try. The BC is .409 Length is 1.123 the ballistics stability calculator put it into the green with a 1.468. A loading recipe I wrote down will send them at 3350 fps spinning at 201,000 rpm's. That sure as heck seems fast enough for my use. </p><p></p><p>I see I first posted about a year ago about this gun and I still have not shot it yet. I have a range in the back yard for the quiet stuff but this isn't going to be one of those. I'll be a good neighbor and take it to a range to try it out. I'll shoot factory 130 sp's until I have some cases available to load.</p><p></p><p>Soon I hope. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="150pilot, post: 766443, member: 43421"] Someone had asked if mine is an FN action, I think not, it's all Mark V with the 9 lug bolt, but a 1967 and clearly marked made in Germany. That definitely put it in the 1-12 twist camp. Hence the original questions about twist. I bought some Hornady 270 130 grain SP interlock bullets to try. The BC is .409 Length is 1.123 the ballistics stability calculator put it into the green with a 1.468. A loading recipe I wrote down will send them at 3350 fps spinning at 201,000 rpm's. That sure as heck seems fast enough for my use. I see I first posted about a year ago about this gun and I still have not shot it yet. I have a range in the back yard for the quiet stuff but this isn't going to be one of those. I'll be a good neighbor and take it to a range to try it out. I'll shoot factory 130 sp's until I have some cases available to load. Soon I hope. :) [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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270 weatherby bullet choice
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