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Hunting
Long Range Hunting & Shooting
6.506 vs 280 AI using 140 gr bullets
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<blockquote data-quote="elkaholic" data-source="post: 367466" data-attributes="member: 13833"><p>I like the gentle way you mentioned a 2% gain and the equal pressure issue<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /> Barrel length of course has a lot to do with the whole equation as you know. To say that an A.I. is 400' better than a std. would take some serious differences in pressure and barrel length! I'm not surprised that you can get 3340 with your Gibbs. My Sherman case holds just a fuzz more than the Gibbs and I can exceed 3200' with a 26" barrel. As you mentioned, that's pushing it. What is your powder and charge with that particular load? I can top 3200' with retumbo 65 gr. RL22 61 gr. and RL25 64 gr.......Rich</p></blockquote><p></p>
[QUOTE="elkaholic, post: 367466, member: 13833"] I like the gentle way you mentioned a 2% gain and the equal pressure issue:D Barrel length of course has a lot to do with the whole equation as you know. To say that an A.I. is 400' better than a std. would take some serious differences in pressure and barrel length! I'm not surprised that you can get 3340 with your Gibbs. My Sherman case holds just a fuzz more than the Gibbs and I can exceed 3200' with a 26" barrel. As you mentioned, that's pushing it. What is your powder and charge with that particular load? I can top 3200' with retumbo 65 gr. RL22 61 gr. and RL25 64 gr.......Rich [/QUOTE]
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6.506 vs 280 AI using 140 gr bullets
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