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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7mm Allen Mag test rifle finished.....
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<blockquote data-quote="Fiftydriver" data-source="post: 75987" data-attributes="member: 10"><p>Eaglet,</p><p></p><p>The computer models are listing a BC in the HIGH .900 range for the 200 gr ULD RBBT. I am not sure what they will get when they actually get in the air. If I had to guess, they will be in the .9 range or at least high .8 range. Anyway you look at it, there will be nothing out there that will match them ballistically except the match grade 50 BMG bullets and then we will have a solid 400 fps velocity advantage. Even if the 50s have a BC of 1.05, it will take alot of range before they will catch up to a .900 BC bullet with a +400 fps headstart!!!</p><p></p><p>I predict they will not do it over their effective range.</p><p></p><p>Found out that barrel is a 1-10 twist which only means that one would be limited to 175 gr bullets and lighter. For a light packing extreme performance big game rifle this would not be a big deal as a 160 to 175 gr premium bullet will really do anything needed.</p><p></p><p>Good Shooting!!</p><p></p><p>Kirby Allen (50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 75987, member: 10"] Eaglet, The computer models are listing a BC in the HIGH .900 range for the 200 gr ULD RBBT. I am not sure what they will get when they actually get in the air. If I had to guess, they will be in the .9 range or at least high .8 range. Anyway you look at it, there will be nothing out there that will match them ballistically except the match grade 50 BMG bullets and then we will have a solid 400 fps velocity advantage. Even if the 50s have a BC of 1.05, it will take alot of range before they will catch up to a .900 BC bullet with a +400 fps headstart!!! I predict they will not do it over their effective range. Found out that barrel is a 1-10 twist which only means that one would be limited to 175 gr bullets and lighter. For a light packing extreme performance big game rifle this would not be a big deal as a 160 to 175 gr premium bullet will really do anything needed. Good Shooting!! Kirby Allen (50) [/QUOTE]
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7mm Allen Mag test rifle finished.....
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