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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
barrel lengths per cartridge decisions
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<blockquote data-quote="Carey Farmer" data-source="post: 3058505" data-attributes="member: 122715"><p>For me, it all comes back to the burn rate of the powder I plan to use. Slow powders need long barrels. Fast powders don't. In general I use 22" barrels for Varget, 26" for H4350, 28" for H4831sc, 30" for H1000, and 32" for Retumbo.</p><p></p><p>The more overbore the case (and the heavier-for-caliber the projectile), the slower the powder needs to be. So, my 308 Win shooting a 150 gr bullet has a 22" barrel. My 28 Nosler shooting a 160 gr bullet has a 32" barrel.</p><p></p><p>-</p></blockquote><p></p>
[QUOTE="Carey Farmer, post: 3058505, member: 122715"] For me, it all comes back to the burn rate of the powder I plan to use. Slow powders need long barrels. Fast powders don't. In general I use 22" barrels for Varget, 26" for H4350, 28" for H4831sc, 30" for H1000, and 32" for Retumbo. The more overbore the case (and the heavier-for-caliber the projectile), the slower the powder needs to be. So, my 308 Win shooting a 150 gr bullet has a 22" barrel. My 28 Nosler shooting a 160 gr bullet has a 32" barrel. - [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
barrel lengths per cartridge decisions
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