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104 Posts
Yes, I love King Arm BBs, in fact I use them in all of my guns, and they are really high quality. I haven't had a single jam in any of my non-tightbore guns and they work great in my guns that I have a 6.03 tightbore in, I would highly doubt there would be any problems in a 6.01 tightbore. They are very nicely polished and shoot great.
