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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Question for 50 Cal shooters
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<blockquote data-quote="LouBoyd" data-source="post: 398556" data-attributes="member: 9253"><p>The M289 projectile certainly has many times more drag than a 800 grain Barnes solid 50 BMG bullet. On the other hand it has in the order of 400 times more kinetic energy (roughly 100 times from it's mass and four times more from from the velocity squared). The percentage of the penetrator's energy which is lost from drag per unit distance is tiny compared to the 50 BMG VLD bullet. This is a drawing of the now discontinued M829 projectile. There are newer models which give better performance but this is the only one I found a drawing for. </p><p><img src="http://www.inetres.com/gp/military/cv/weapon/120mm/120mm_M829_projectile.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p>Is a low ratio of shots per kill at long range a good thing? If so then it should be wonderful that carefully targeted MIRV ICBM could get around a million kills per shot at over 6000 miles.</p></blockquote><p></p>
[QUOTE="LouBoyd, post: 398556, member: 9253"] The M289 projectile certainly has many times more drag than a 800 grain Barnes solid 50 BMG bullet. On the other hand it has in the order of 400 times more kinetic energy (roughly 100 times from it's mass and four times more from from the velocity squared). The percentage of the penetrator's energy which is lost from drag per unit distance is tiny compared to the 50 BMG VLD bullet. This is a drawing of the now discontinued M829 projectile. There are newer models which give better performance but this is the only one I found a drawing for. [IMG]http://www.inetres.com/gp/military/cv/weapon/120mm/120mm_M829_projectile.png[/IMG] Is a low ratio of shots per kill at long range a good thing? If so then it should be wonderful that carefully targeted MIRV ICBM could get around a million kills per shot at over 6000 miles. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Question for 50 Cal shooters
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