i am trying to find out what grain bullet is the best, i dont want any other factor to be changed, should i compleatly clean the gun after a three shot test group (its a 30-06) to enshure that foulowing is not the cause for inaccuracy or will three shots not be enought to foul it, also when im looking for accuracy at long range how often should i clean it (not to confuse this with the other thread
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