Suggestions for removing rust from inside barrel?

[oldbrownhat]

I admit I have not tried it with rust myself. I was told back in the day that it would do the job on rust or anything else likely to be found in a firearms bore, but I have no first hand knowledge of that. I probably should have let that one go rather than passing on maybe bunk info. Since I no longer have any liquid mercury, nor for that matter a rusty barrel on which to try it, I shall pass.

I still have an "audiophile" turntable (altho no longer used) fitted with a Keith Monks "fluid damped" arm which instead of the ultra-thin wires from the arm to the base, has three small recesses in the base filled with mercury, in which sit three pins from the arm which lead to the terminals on the cartridge. I used to have a small bottle of mercury which back in the day I had got from a local chemical supply house. It had long disappeared when I moved and lost the mercury in the base. But the owner of a secondhand store said he had some old thermostats which had mercury switches in them, which saved the day.

 

[WR Moore]

I haven't price rifle barrels lately, but given the prices of bore scopes, you could be well on your way to a new barrel.

 

[SGT ROCK 11B]

Just remembered that I have a Lewis barrel cleaning kit that includes their brass mesh pads... I'm thinking that may help as well.

So we are talking about a handgun.

 

[AJR337]

So we are talking about a handgun.

Yes, I just picked up a 3" model 36 that appears to be carried a bit but not shot much. Very faint turn line, tight lockup, and prefect timing. Overall, the cosmetics are very good but the last inch of barrel (closest to the muzzle) has a few patches of rust. The rest of the barrel is spotless. I was able to get it for $325 OTD so couldn't pass it up.

My Home Depot delivery arrived 10 minutes ago...Kroil.

I'm planning to pour some Kroil into a small cup and soak the barrel for a day or two. After that I'll run a brass brush and/or the Lewis brass patches down the barrel and see how it looks after that.