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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.300 Win Mag twist rate and barrel length?
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<blockquote data-quote="Subzero" data-source="post: 2159106" data-attributes="member: 111574"><p>I would pick 1 or 2 bullets that you would most likely shoot. Based off of that you can pick your twist. (Berger has a twist calculator)</p><p></p><p>Then plug your numbers into a ballistic calculator ( I like hornadys) to see how much velocity/energy you will have at whatever distance you want to shoot.</p><p></p><p>It seems that slower powders are ideal in a 300 win mag. A fast powder with a short barrel will only give you even slower velocities. I would think the difference between 24" and 26" in this cartridge would be closer to 75-100fps.</p><p>The ballistic calculator will give you what you want to know. I think minimum bullet velocities on impact are generally 1,800fps. Energy on impact depends on the game, but people have their own ideas about that.</p></blockquote><p></p>
[QUOTE="Subzero, post: 2159106, member: 111574"] I would pick 1 or 2 bullets that you would most likely shoot. Based off of that you can pick your twist. (Berger has a twist calculator) Then plug your numbers into a ballistic calculator ( I like hornadys) to see how much velocity/energy you will have at whatever distance you want to shoot. It seems that slower powders are ideal in a 300 win mag. A fast powder with a short barrel will only give you even slower velocities. I would think the difference between 24" and 26" in this cartridge would be closer to 75-100fps. The ballistic calculator will give you what you want to know. I think minimum bullet velocities on impact are generally 1,800fps. Energy on impact depends on the game, but people have their own ideas about that. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.300 Win Mag twist rate and barrel length?
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