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Old 09-03-2011, 5:30 PM
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Cokebottle Cokebottle is offline
Guitar: The Deplorables
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What caliber?

95gr .243 works in a 1:14 but a 75gr .224 won't work in a 1:9.

If you're talking about 5.56/.223 specifically, 1:9 is good for up to about 65gr.
1:8 is a common twist for competition barrels.... usually only going to find it in stainless barrels with the .223 Wylde chamber.
Standard steel barrels your choices are normally 1:9 or 1:7.
Either is fine... 1:9 is better if most of your shooting is plinking with the .55gr XM193 or the common 62gr steel core.
1:9 is much better for the 45gr varmint rounds.
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Last edited by Cokebottle; 09-03-2011 at 5:34 PM..
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