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#5
09-24-2006, 09:01 AM
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Ben, wth loads that light, you may in fact be shooting them too slow to properly stabilize. Barrel twist and muzzle velocity are both resposible for stability - the bullet has to go fast enough to spin fast enough.
I've usually found best accuracy at about 5% under maximum charges. One final caution: going under the START level loads with very slow powders can be very dangerous. I've personally seen it happen with H4831 in the 7 Mag. Nobody knows why exactly, but a much-reduced charge of slow powder can occasionally produce extremely high pressures. Don't do it.
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