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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
375 Caliber A-max...might be a possibility. Please read.
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<blockquote data-quote="Beng" data-source="post: 896912" data-attributes="member: 37512"><p>BC=sd/i</p><p></p><p>The material a projectile is made from has no relevant influence on it's bc. Only the weight via sd and the formfactor are important for our purposes. Monometallic projectiles do actually have an advantage due to their manufacturing process. It's much easier and rather inexpensice to experiment with and produce exotic shapes in small volumes on a lathe. </p><p>Thus it could be possible to manufacture very low formfactor values in monometallic bullets.</p><p>For conventional cup and core bullets I'd rather look for existing extremely low drag designs and take their form factors to guesstimate what a new bullet might be able to offer. The .300 gr Berger has a formfactor of .457, with a similar form factor, a .375 cal projectile had to weigh 370 gr to offer similar performance. An even lighter bullet had to be of a more efficient design than the berger (lower formfactor).</p><p>I'm not saying that it'd be impossible, but pretty difficult to beat the .338 with it's current bullet selection. Especially considering increased recoil and penetration. The small market for .375 lr stuff was already mentioned.</p><p>Nonetheless a .375 cal A-Max would be a great thing, even if it had a bc of just .65.</p></blockquote><p></p>
[QUOTE="Beng, post: 896912, member: 37512"] BC=sd/i The material a projectile is made from has no relevant influence on it's bc. Only the weight via sd and the formfactor are important for our purposes. Monometallic projectiles do actually have an advantage due to their manufacturing process. It's much easier and rather inexpensice to experiment with and produce exotic shapes in small volumes on a lathe. Thus it could be possible to manufacture very low formfactor values in monometallic bullets. For conventional cup and core bullets I'd rather look for existing extremely low drag designs and take their form factors to guesstimate what a new bullet might be able to offer. The .300 gr Berger has a formfactor of .457, with a similar form factor, a .375 cal projectile had to weigh 370 gr to offer similar performance. An even lighter bullet had to be of a more efficient design than the berger (lower formfactor). I'm not saying that it'd be impossible, but pretty difficult to beat the .338 with it's current bullet selection. Especially considering increased recoil and penetration. The small market for .375 lr stuff was already mentioned. Nonetheless a .375 cal A-Max would be a great thing, even if it had a bc of just .65. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
375 Caliber A-max...might be a possibility. Please read.
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