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375-408 CheyTac (Kirby Alert!!!!!!) question
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<blockquote data-quote="Fiftydriver" data-source="post: 120718" data-attributes="member: 10"><p>Lerch,</p><p></p><p>You are correct, it is simply illegal to use the LRBT J40 bullets for use on game here in Montana and many other western states where an expanding bullet is required.</p><p></p><p>As such, this is really getting to be a moot point, even if they shoot well, which I know they will in certain barrels but will not in many others, even if they shoot the flattest which they may depending on what they are shot out of, even if they dropped the price for them in half(they would still be the most expensive bullet option), even with all that, it is illegal to use them on game so I guess the question is this,</p><p></p><p>Get me a bullet that is legal to use on game in that 375 of yours and lets see how it runs with the 338 version. With the current crop of 375 expanding bullets, it will not even be a comparision. Not the fault of the 375, just no bullets out there yet for this type of round designed for our needs.</p><p></p><p>When Sierra comes out with their SMK it will help alot but still, I suspect a 300 gr 338 SMK will have at least as high, if not higher BC then a 375 gr 375 cal SMK.</p><p></p><p>Again, we need a legal to hunt with projectile, this is after all Long Range "Hunting". Winning LR competitions is really not high on many of our lists. Very interesting but not what we are really based on.</p><p></p><p>If you look at LRBT J36 bullets, their highest BC 338 bullet is the 250 gr with a BC of .661. The highest BC 375 J36 bullet is the 300 gr version with a BC of .640.</p><p></p><p>Neither will come even close to the 300 gr SMK even with a conservative BC of 0.790. I have found its closer to .810 in my rifles over long range. And from what I have read about the field results of these bullets on game, they work the best the harder you push them velocity wise. Similiar to an X bullet but with even less expansion. That means at ranges past 600 yards you would still get pin hole penetration.</p><p></p><p>I guess after all this discussion we still are left with the problem that there is no use for these bullets in LRH at least legally in many states.</p><p></p><p>Learning about ballistics is always valuable and this has been a very informative debate. I do not think you have proven your statements about the slower bullets out ranging the faster ones but we all understand that a faster bullet will decelorate at a faster rate then a slower bullet. Same idea why a bullet traveling from 100 to 200 yards will shed dramatically more velocity then the same bullet traveling between the 1500 and 1600 yard markers.</p><p></p><p>STill we need viable big game hunting options, not mil spec use projectiles. Again, very interesting read but we are comparing apples to oranges again.</p><p></p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 120718, member: 10"] Lerch, You are correct, it is simply illegal to use the LRBT J40 bullets for use on game here in Montana and many other western states where an expanding bullet is required. As such, this is really getting to be a moot point, even if they shoot well, which I know they will in certain barrels but will not in many others, even if they shoot the flattest which they may depending on what they are shot out of, even if they dropped the price for them in half(they would still be the most expensive bullet option), even with all that, it is illegal to use them on game so I guess the question is this, Get me a bullet that is legal to use on game in that 375 of yours and lets see how it runs with the 338 version. With the current crop of 375 expanding bullets, it will not even be a comparision. Not the fault of the 375, just no bullets out there yet for this type of round designed for our needs. When Sierra comes out with their SMK it will help alot but still, I suspect a 300 gr 338 SMK will have at least as high, if not higher BC then a 375 gr 375 cal SMK. Again, we need a legal to hunt with projectile, this is after all Long Range "Hunting". Winning LR competitions is really not high on many of our lists. Very interesting but not what we are really based on. If you look at LRBT J36 bullets, their highest BC 338 bullet is the 250 gr with a BC of .661. The highest BC 375 J36 bullet is the 300 gr version with a BC of .640. Neither will come even close to the 300 gr SMK even with a conservative BC of 0.790. I have found its closer to .810 in my rifles over long range. And from what I have read about the field results of these bullets on game, they work the best the harder you push them velocity wise. Similiar to an X bullet but with even less expansion. That means at ranges past 600 yards you would still get pin hole penetration. I guess after all this discussion we still are left with the problem that there is no use for these bullets in LRH at least legally in many states. Learning about ballistics is always valuable and this has been a very informative debate. I do not think you have proven your statements about the slower bullets out ranging the faster ones but we all understand that a faster bullet will decelorate at a faster rate then a slower bullet. Same idea why a bullet traveling from 100 to 200 yards will shed dramatically more velocity then the same bullet traveling between the 1500 and 1600 yard markers. STill we need viable big game hunting options, not mil spec use projectiles. Again, very interesting read but we are comparing apples to oranges again. Kirby Allen(50) [/QUOTE]
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