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375-408 CheyTac (Kirby Alert!!!!!!) question
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<blockquote data-quote="Fiftydriver" data-source="post: 120784" data-attributes="member: 10"><p>Well, the unstability issue does make some sense as far as a faster bullet being passed by a slower bullet down range. But I assure you it is not hard to build a rifle to fully stabilize or should I say "Correctly" stabilize a bullet at these velocities.</p><p></p><p>BD408 has tested down to 1-9.25 twist barrels and up to 1-11.25 twist pipes, I use standard 1-10 twist for my 338 AMs. </p><p></p><p>I personally feel if your going to use a 300 gr SMK, the 1-11 twist may be perfect. You can use a 1-10 like I am and get great results. I personally feel the 1-9 class twists are to fast for anything but a 350 gr ULD RBBT and even then they are not needed as I have shot them in my 1-10 with great results.</p><p></p><p>We still have not gotten a response about the comparision between the top performing 338 hunting bullet and the top performing 375 hunting bullet when used over a 408 CT class case volume.</p><p></p><p>I suspect the reason is because there is nothing worth comparing, even with the J36 LRBT bullet in the 375, the 300 gr SMK will smoke it in either the 338 Big Bear, 338 Sniper-Tac or my 338 Allen Magnum.</p><p></p><p>Waiting with interest about the response from Triggerfifty.</p><p></p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 120784, member: 10"] Well, the unstability issue does make some sense as far as a faster bullet being passed by a slower bullet down range. But I assure you it is not hard to build a rifle to fully stabilize or should I say "Correctly" stabilize a bullet at these velocities. BD408 has tested down to 1-9.25 twist barrels and up to 1-11.25 twist pipes, I use standard 1-10 twist for my 338 AMs. I personally feel if your going to use a 300 gr SMK, the 1-11 twist may be perfect. You can use a 1-10 like I am and get great results. I personally feel the 1-9 class twists are to fast for anything but a 350 gr ULD RBBT and even then they are not needed as I have shot them in my 1-10 with great results. We still have not gotten a response about the comparision between the top performing 338 hunting bullet and the top performing 375 hunting bullet when used over a 408 CT class case volume. I suspect the reason is because there is nothing worth comparing, even with the J36 LRBT bullet in the 375, the 300 gr SMK will smoke it in either the 338 Big Bear, 338 Sniper-Tac or my 338 Allen Magnum. Waiting with interest about the response from Triggerfifty. Kirby Allen(50) [/QUOTE]
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