A buddy was cleaning his 257 and 243 today and has spent endless hours and still producing dirty patches. After running a wet patch (hoppes no. 9) he is getting nothing at all as well as the dry patch but after running the bore brush through the patches look disgusting and yet it doesn't seem to be improving.
Any ideas on what this could be, or how to remedy this situation as endless hours have gone into this and yet the results are still the same. He's used a copper solvent and there doesn't seem to be any evidence of remaining copper fouiling.
We are at a loss.
Any ideas on what this could be, or how to remedy this situation as endless hours have gone into this and yet the results are still the same. He's used a copper solvent and there doesn't seem to be any evidence of remaining copper fouiling.
We are at a loss.