S
spfld
Guest
Hi all. I have been using bore paste made by Break-Free in a new Douglas XX .270 cal. barrel. I did a "break-in" by shooting 2 rounds, scrubbing, repeat for several times over and keep seeing prominent streaks of copper @ the muzzle. Only 2 things remove the copper, Sweet's 7.62 or bore paste and the paste seems to do it faster. I have been through 2 bore paste sessions with about 30 strokes. These are counted as round trips not individual strokes. Anyhow I now wonder if this paste is effective or do I just keep applying the elbow grease? After a paste session I can shoot it about 10 to 12 times and the copper is back and accuracy drops off fast. It wants to stay in the 1/2" group range until the copper shows up. I have tried several brands of bullets with it liking some and not liking others accuracy-wise but that's to be expected. The one constant is the excess copper build up. Not having a bore scope I have seen what looks like chatter marks in the first inch in from the muzzle using a good penlight and a jewelers loup. The first 1 1/2" of the muzzle end of the barrel has been removed as Douglas recommends, and properly crowned. I have heard good & bad about fire lapping so have not really considered it. Starting to wonder if this barrel is just a bummer and nothing will save it. I do not want to wreck it with some drastic "fix". Can it be overdone with bore paste?
Thanks for any tips!!
Thanks for any tips!!