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375-408 CheyTac (Kirby Alert!!!!!!) question
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<blockquote data-quote="Fiftydriver" data-source="post: 120232" data-attributes="member: 10"><p>Triggerfifty,</p><p></p><p>My question if this then.</p><p></p><p>Say you take a 300 gr SMK at a muzzle velocity of 3200 fps. From the muzzle to the end of its trajectory it will follow a certain ballistic trail. Over this path, as you correctly state, the BC will continually be changing as the velocity of the projectile decreases.</p><p></p><p>So from the muzzle the 300 gr SMK will produce a certain ballistic path.</p><p></p><p>Is it not correct to think that if I take my 338 Allen Mag, load it to 3450 fps that once the projectiles velocity drops to 3200 fps, it will have VERY nearly the same identical ballistic path as the bullet that started out at that velocity?</p><p></p><p>Now I know to keep things as perfectly similiar as possible, we would have to use a slower twist with the faster Allen Mag to produce identical RPMs but both bullets path from 3200 fps to the end of their flight path should be extremely similiar.</p><p></p><p>At 300 yards, my 338 Allen Mag bullet will have the same velocity as the 3200 fps muzzle velocity of the other 338 bullet.</p><p></p><p>From this point on should they not have nearly identical ballistic performance?</p><p></p><p>Good topic, and interesting debate. By the way, where can I get ahold of some of those 270 gr pills to try out!!! If you have a link to them or a supplier I would be interested to get that information.</p><p></p><p>Good Shooting!!</p><p></p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 120232, member: 10"] Triggerfifty, My question if this then. Say you take a 300 gr SMK at a muzzle velocity of 3200 fps. From the muzzle to the end of its trajectory it will follow a certain ballistic trail. Over this path, as you correctly state, the BC will continually be changing as the velocity of the projectile decreases. So from the muzzle the 300 gr SMK will produce a certain ballistic path. Is it not correct to think that if I take my 338 Allen Mag, load it to 3450 fps that once the projectiles velocity drops to 3200 fps, it will have VERY nearly the same identical ballistic path as the bullet that started out at that velocity? Now I know to keep things as perfectly similiar as possible, we would have to use a slower twist with the faster Allen Mag to produce identical RPMs but both bullets path from 3200 fps to the end of their flight path should be extremely similiar. At 300 yards, my 338 Allen Mag bullet will have the same velocity as the 3200 fps muzzle velocity of the other 338 bullet. From this point on should they not have nearly identical ballistic performance? Good topic, and interesting debate. By the way, where can I get ahold of some of those 270 gr pills to try out!!! If you have a link to them or a supplier I would be interested to get that information. Good Shooting!! Kirby Allen(50) [/QUOTE]
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