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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: July/18/2007 at 14:13
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Optics GrassHopper
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Joined: July/18/2007
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Bought a new rifle that has a 1:12 twist on it's 26" length barrel.  The caliber is .22-250, I've had people suggest everything from 40gr. to over 70gr.  Seems the most popular is 55gr.  But I want to make sure I get the right bullet for the rate of twist in my barrel.  Anyone?
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: July/18/2007 at 16:39
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Joined: October/13/2006
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Spencer,

A 1:12 twist .224 barrel will probably work best with 50-55 gr bullets.  Best results with 70 gr bullets will probably come from a 1:9 twist barrel.  A 12 twist barrel is recommended for bullets up to 60-63 gr.  The correct twist rate for a given bullet is not really a function of bullet weight, but instead the length of a bullet's bearing surface against the bore, i.e. longer bullets require faster twist to properly stabilize.  It just so happens that all else being equal, for a given caliber, a heavier bullet is usually a longer bullet.  The bottom line is you have to shoot a selection of bullet weights and let your rifle tell you what works best in it.

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: July/18/2007 at 19:49
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Optics Retard
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OT TITAN

Joined: December/22/2006
Location: North Dakota
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ted is correct here again the 55 is my personal choice out of my 22-250  as well
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