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375-408 CheyTac (Kirby Alert!!!!!!) question
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<blockquote data-quote="Brown Dog" data-source="post: 128039" data-attributes="member: 1622"><p>[ QUOTE ]</p><p>I hate to enter these "highly turbulent" waters but if I read the bottom line of a great theory correctly, does it not translate, even across the Pond, into this: a rebated base ULD will have less base induced drag than a nominal BT or FB bullet? Now to go way, way out, how about integral turbulence generating patterns engraved upon the circumfrance of the bearing portion???This works in a fluid medium and at supersonic air velocities---- Overbore /ubbthreads/images/graemlins/confused.gif </p><p></p><p>[/ QUOTE ]</p><p></p><p>Overbore,</p><p>Apologies, only just noticed the above. I'm not sure what you're asking....I think we're agreeing /ubbthreads/images/graemlins/confused.gif /ubbthreads/images/graemlins/smile.gif ...can't comment on the effect of engraving on the bearing surface of a bullet but, from memory, the turbulence created by the engraved notches in a shell's driving band (for example) does contribute to a reduction in the shell's base drag..... /ubbthreads/images/graemlins/crazy.gif /ubbthreads/images/graemlins/smile.gif</p></blockquote><p></p>
[QUOTE="Brown Dog, post: 128039, member: 1622"] [ QUOTE ] I hate to enter these "highly turbulent" waters but if I read the bottom line of a great theory correctly, does it not translate, even across the Pond, into this: a rebated base ULD will have less base induced drag than a nominal BT or FB bullet? Now to go way, way out, how about integral turbulence generating patterns engraved upon the circumfrance of the bearing portion???This works in a fluid medium and at supersonic air velocities---- Overbore [img]/ubbthreads/images/graemlins/confused.gif[/img] [/ QUOTE ] Overbore, Apologies, only just noticed the above. I'm not sure what you're asking....I think we're agreeing [img]/ubbthreads/images/graemlins/confused.gif[/img] [img]/ubbthreads/images/graemlins/smile.gif[/img] ...can't comment on the effect of engraving on the bearing surface of a bullet but, from memory, the turbulence created by the engraved notches in a shell's driving band (for example) does contribute to a reduction in the shell's base drag..... [img]/ubbthreads/images/graemlins/crazy.gif[/img] [img]/ubbthreads/images/graemlins/smile.gif[/img] [/QUOTE]
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