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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
SF and SG
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<blockquote data-quote="remingtonman_25_06" data-source="post: 2033505" data-attributes="member: 1403"><p>Ok. Well I was playing around with some 6mm bullets from my 10 twist 240 WBY. Inparticular is the 87g VMAX since this is my coyote rifle. When I enter everything into strelok pro, I'm getting a SF of 1.31 and the berger site shows a 1.29 so close enough between the 2. But, that seems a little low for an 87g bullet, no? I've read where they are supposedly stable from a 12" twist, but if my 10" twist 240 spitting them out at 3400fps only shows an SF of 1.3 that doesnt seem right, does it? How can an 87g bullet be marginally stable from a 10"? If I go buy the SF numbers, then I'm limited to about the 70g NBT with an SF of 1.66 Even the 80g NBT only has an SF of 1.45 Just doesnt seem right to me. Unless I'm missing something?? Seems pretty stupid to me to only be limited to 70g plastic tipped bullets in a 240 WBY...</p></blockquote><p></p>
[QUOTE="remingtonman_25_06, post: 2033505, member: 1403"] Ok. Well I was playing around with some 6mm bullets from my 10 twist 240 WBY. Inparticular is the 87g VMAX since this is my coyote rifle. When I enter everything into strelok pro, I'm getting a SF of 1.31 and the berger site shows a 1.29 so close enough between the 2. But, that seems a little low for an 87g bullet, no? I've read where they are supposedly stable from a 12" twist, but if my 10" twist 240 spitting them out at 3400fps only shows an SF of 1.3 that doesnt seem right, does it? How can an 87g bullet be marginally stable from a 10"? If I go buy the SF numbers, then I'm limited to about the 70g NBT with an SF of 1.66 Even the 80g NBT only has an SF of 1.45 Just doesnt seem right to me. Unless I'm missing something?? Seems pretty stupid to me to only be limited to 70g plastic tipped bullets in a 240 WBY... [/QUOTE]
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