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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Affect of rotational velocity on bullet performance
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<blockquote data-quote="elkaholic" data-source="post: 1203596" data-attributes="member: 13833"><p>Using the MV and twist rate for my SS in this data, here is the difference:</p><p></p><p>mv=3155 x8 twist(1.5)x60= 283,950 RPM</p><p></p><p>Using the impact velocity above at 1859 fps and using a reduced load to duplicate you get the following:</p><p></p><p>MV=1859x1.5 x60= 167,310 RPM</p><p></p><p>Rotational velocity decreases at a MUCH lower rate than forward momentum (impact velocity) so it does not take a rocket scientist to see how much more disruption of the bullet might take place with an additional 116,640 RPM......Rich</p></blockquote><p></p>
[QUOTE="elkaholic, post: 1203596, member: 13833"] Using the MV and twist rate for my SS in this data, here is the difference: mv=3155 x8 twist(1.5)x60= 283,950 RPM Using the impact velocity above at 1859 fps and using a reduced load to duplicate you get the following: MV=1859x1.5 x60= 167,310 RPM Rotational velocity decreases at a MUCH lower rate than forward momentum (impact velocity) so it does not take a rocket scientist to see how much more disruption of the bullet might take place with an additional 116,640 RPM......Rich [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Affect of rotational velocity on bullet performance
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