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Rifles, Reloading, Optics, Equipment
Reloading
cartridge length 300 Winchester magnum
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<blockquote data-quote="charliehorse27" data-source="post: 2108293" data-attributes="member: 110063"><p>My understanding is that SAAMI length is the standard, so all rifle manufacturers make their chambers to fit rounds measuring at least that length. As such, all factory loads will generally measure SAAMI length as well. But, that's the beauty of handloading because you then have the freedom to extend the length of the bullet out of the cartridge to facilitate whether your rifle likes .005 off the rifling, or .05 off the rifling. I also have a 300 WM, and it's throated for much longer rounds, around 3.90" OAL. This enables it to take advantage of the heavier bullets, such as 215's, and get enough powder behind them to send them fast.</p><p></p><p>Hope that helps a little.</p></blockquote><p></p>
[QUOTE="charliehorse27, post: 2108293, member: 110063"] My understanding is that SAAMI length is the standard, so all rifle manufacturers make their chambers to fit rounds measuring at least that length. As such, all factory loads will generally measure SAAMI length as well. But, that’s the beauty of handloading because you then have the freedom to extend the length of the bullet out of the cartridge to facilitate whether your rifle likes .005 off the rifling, or .05 off the rifling. I also have a 300 WM, and it’s throated for much longer rounds, around 3.90” OAL. This enables it to take advantage of the heavier bullets, such as 215’s, and get enough powder behind them to send them fast. Hope that helps a little. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
cartridge length 300 Winchester magnum
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