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Old 01-11-2005, 04:37 PM
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driftrider
Nontypical Buck
 
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Join Date: Feb 2003
Location: Coralville, IA. USA
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Default RE: heavies in a 22-250?

Because people buy .22-250's for their velocity potential with standard weight varmint bullets (that run from 40-55 grains, typically), and .22-250 rifles are rifled with a pitch just fast enough to stabilize these relatively fragile bullets without causeing them to deform of disintegrate in flight (usually 1-in-14"). Secondly, getting much over 55 grains defeats the original purpose because velocity drops off fast past 55 grains.

I've been thinking about doing a custom rifle in 22-250 Ackley Improved with a faster than standard pitch barrel (probably 1-in-10") and load it with 60-70 grain bullets. The extra case volume of the Improved case would reclaim some of the lost velocity, while the improved BC of the heavier bullets would make it perform exceptionally well downrange. And barrel life due to the slightly lower velocites should be somewhat better as well. Plus it'd allow me to still shoot factory loads if necessary.

Mike
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