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Hunting
Long Range Hunting & Shooting
Optimum barrel length and twist for 223?
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<blockquote data-quote="benchracer" data-source="post: 1195211" data-attributes="member: 22069"><p>Your intended purpose (coyotes out to 300 yards) leaves your options pretty wide open. An 8 twist will work well with bullets ranging from the 55 grain you mentioned to the 75 AMAX. You don't need to go heavy to reach out to 300 yards, but I would bet that you will eventually want to try the heavies anyway, so you may as well go with the fast twist. It won't hurt you on the light end and will give you more overall flexibility.</p><p> </p><p>IMO, 24" of barrel length will give you just about everything you are going to get from a .223/5.56mm. You can go longer, but you will quickly enter the land of diminishing returns. Anything between 20" and 24" will work well. I prefer the 5.56mm NATO chamber to the .223 chamber for its greater versatility, being able to digest a wider variety of ammo and allowing for heavy bullets to be seated longer.</p></blockquote><p></p>
[QUOTE="benchracer, post: 1195211, member: 22069"] Your intended purpose (coyotes out to 300 yards) leaves your options pretty wide open. An 8 twist will work well with bullets ranging from the 55 grain you mentioned to the 75 AMAX. You don't need to go heavy to reach out to 300 yards, but I would bet that you will eventually want to try the heavies anyway, so you may as well go with the fast twist. It won't hurt you on the light end and will give you more overall flexibility. IMO, 24" of barrel length will give you just about everything you are going to get from a .223/5.56mm. You can go longer, but you will quickly enter the land of diminishing returns. Anything between 20" and 24" will work well. I prefer the 5.56mm NATO chamber to the .223 chamber for its greater versatility, being able to digest a wider variety of ammo and allowing for heavy bullets to be seated longer. [/QUOTE]
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Optimum barrel length and twist for 223?
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