It takes quite a few 5 shot groups to assess a rifle's precision capability.
It takes quite a few 5 shot groups to assess a rifle's precision capability.
What I have done is very carefully clean a new rifle, using a fine, mildly abrasive paste followed by clean patches - Before firing the first shot. I want to make sure there is nothing left from factory proofing/testing (if done) or any machining marks as has been mentioned by previous posters. This makes future cleaning easier right from the start.
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