Thread: Barrels ruined by cleaning

Chamber end carbon scrub I normally wet a mop or patch with Kroil, push it thru and let that soak in for 5-10 min. Then put a patch on a jag, wet that with slightly thicker oil like Breakfree CLP, and then apply abbrasive paste on top of that.

Once you are done scrubbing, you want to make REALLY sure you remove all abbrasive, so use something like brake cleaner or even meths. Remember that an abbrasive polishing compound will create a black patch, so don't think the patches will eventually come clean By that stage you would have created a small caliber smooth bore

You really need yo look down the barrel with a borescope to see if you have removed serious carbon (or rust). Bores scopes are a game changer interest of cleaning.

Thanks EBF.
I’l do a clean out with meths next time after the paste.

Its actually JB paste ive used.

Originally Posted by ebf

Chamber end carbon scrub I normally wet a mop or patch with Kroil, push it thru and let that soak in for 5-10 min. Then put a patch on a jag, wet that with slightly thicker oil like Breakfree CLP, and then apply abbrasive paste on top of that.

Once you are done scrubbing, you want to make REALLY sure you remove all abbrasive, so use something like brake cleaner or even meths. Remember that an abbrasive polishing compound will create a black patch, so don't think the patches will eventually come clean By that stage you would have created a small caliber smooth bore

You really need yo look down the barrel with a borescope to see if you have removed serious carbon (or rust). Bores scopes are a game changer interest of cleaning.

Agree re the borescope for cleaning. Takes the guesswork out of it. Often find residual carbon or copper that’s a surprise. And then focus the technique. Arguably reduces any risk of overcleaning...