There isn't one. Clean thoroughly before shooting. Then shoot. Don't clean the barrel again until accuracy suffers. Which might be never or 5000 rounds, or 500 depending on your rifle. Peak accuracy may also be after tens or hundreds of rounds.
There isn't one. Clean thoroughly before shooting. Then shoot. Don't clean the barrel again until accuracy suffers. Which might be never or 5000 rounds, or 500 depending on your rifle. Peak accuracy may also be after tens or hundreds of rounds.
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