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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
400-425 grain .375 ULD Interest?
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<blockquote data-quote="Topshot" data-source="post: 598597" data-attributes="member: 13285"><p>Just for fun I did some numbers on a 400gn Lead core bullet design.</p><p> </p><p>Given.............</p><p>Bullet weight 400gns.</p><p>Barrel twist of 1 : 10</p><p>Air pressure 29.6 in/hg</p><p>Temp 59 F</p><p>70% RH</p><p>Muzzle velocity 3000 fps</p><p>Bullet length 2.300" </p><p>B.C. ?????</p><p> </p><p>Stability factor comes up at 1.44 so it should be stable in most rifles. I would say that the B.C. would be quite high enough to keep most shooters happy so long as the basic design was well thought out. </p><p> </p><p>i.e. a basic standard run of the mill BTHP bullet.</p><p> </p><p>OK so who's gunna build it?</p></blockquote><p></p>
[QUOTE="Topshot, post: 598597, member: 13285"] Just for fun I did some numbers on a 400gn Lead core bullet design. Given............. Bullet weight 400gns. Barrel twist of 1 : 10 Air pressure 29.6 in/hg Temp 59 F 70% RH Muzzle velocity 3000 fps Bullet length 2.300" B.C. ????? Stability factor comes up at 1.44 so it should be stable in most rifles. I would say that the B.C. would be quite high enough to keep most shooters happy so long as the basic design was well thought out. i.e. a basic standard run of the mill BTHP bullet. OK so who's gunna build it? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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400-425 grain .375 ULD Interest?
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