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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Twist vs Bullet Weight Question
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<blockquote data-quote="Hugnot" data-source="post: 2938830" data-attributes="member: 115658"><p>During WWI, occasionally, .303 Brit & US Caliber .30 (.30-06) rounds had bullets pulled then reinserted point down. This exposed the lead core at the open end of the cup base. Sniper activity was common. Occasionally thick steel plates having small openings were used to observe & spot targets. The plates became targets & the <u>thinking</u> was that a hit from base forward bullet would deliver more energy to the steel plate & inflict injury to an observer.</p><p></p><p>Don't think this works - velocity would decrease & impact energy would decrease because energy uses velocity squared but time for bullet to consume its mass upon impact would decrease. Use of a pointy hi vel bullet with a depleted uranium core would work better. A local gun club sez NO to my .22-.250 for shooting steel. </p><p></p><p>Looking at the Miller process - 30 is multiplied by the bullet weight then the product of that value is divided by a blast of arithmetic including exponential math, ratios, & differences - sure looks like "semi-empirically derived and contain approximations based on experimental data." - around the common value of 30.</p></blockquote><p></p>
[QUOTE="Hugnot, post: 2938830, member: 115658"] During WWI, occasionally, .303 Brit & US Caliber .30 (.30-06) rounds had bullets pulled then reinserted point down. This exposed the lead core at the open end of the cup base. Sniper activity was common. Occasionally thick steel plates having small openings were used to observe & spot targets. The plates became targets & the [U]thinking[/U] was that a hit from base forward bullet would deliver more energy to the steel plate & inflict injury to an observer. Don't think this works - velocity would decrease & impact energy would decrease because energy uses velocity squared but time for bullet to consume its mass upon impact would decrease. Use of a pointy hi vel bullet with a depleted uranium core would work better. A local gun club sez NO to my .22-.250 for shooting steel. Looking at the Miller process - 30 is multiplied by the bullet weight then the product of that value is divided by a blast of arithmetic including exponential math, ratios, & differences - sure looks like "semi-empirically derived and contain approximations based on experimental data." - around the common value of 30. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Twist vs Bullet Weight Question
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