Removing carbon with KREEN

[Dolomite]

I don't see where the steel used to build a rim-fire barrel is any different from that used in the manufacture of a center-fire~!!!!

Sorry I meant the carbon ring is different. Rimfire is easier to remove.

 

[rickt300]

Kreen appears to be the same thing as Kroil.

 

[cavedweller60]

Kreen appears to be the same thing as Kroil.

It's made by kroil but is a formulation geared towards being an engine treatment...think the old STP commercials. Kroil is a great product and, although I have never used Kreen, I suspect it's a great product as well.

I do use top end (engine) cleaner to remove carbon and have fir about the last 6 months. I tried a few different ones but Berrymans seemed to work the best.

 

[Buzzsaw]

CLR works too. BUT

just keep up with your cleaning. Many shooters "never" clean and end up paying for it, having to Search all sorts of "strange brews" to get carbon out. It turns to a ceramic glaze if neglected in centerfires.

 

[JEFFPPC]

A little over a year ago, I found a Winchester pre-A 52 with factory original stainless steel bbl in a semi-local gunshop. Though I'd read about Winchester using SS bbls on some of their older rifles - and this one was probably made in the mid-1920s - this is the first one I'd ever seen in person. I thought about buying it at that time, but felt it was over-priced. But a month or so ago, while I was in this same shop trying to decide whether to buy a nice Marlin 39 or an equally nice Winchester 9422 XTR, I noticed that the SS pre-A 52 was still in the rack behind the counter. I looked it over again, but walked out with the 9422. But thoughts of that old 52 kept nagging at me, and a couple of weeks later, I went back into that shop with my Hawkeye borescope and gave it a good inspection. I was surprised at how smooth & clean the bore was, except for a slight carbon ring in the leade. After haggling a bit over price, the owner dropped it to the point where I bit, and wound up walking out with it. When I wiped the bore with Ed's Red, I didn't get much out on the couple of patches I pushed through it, but the borescope showed the carbon ring was still there. So I wet a patch with C4 and used a short pistol rod to push it into the chamber, and left it there for 20+ min. Another patch wet with C4 was then pushed through the bore, then a couple of dry patches, then it was inspected with the borescope again. No trace of the carbon ring was visible. Now I have no idea how long that ring had been in the bore, but it's not out of the question to assume it'd been there for several decades - whatever, Boretech C4 carbon remover got it out just that quick & easy.

I doubt that is like baked on Varget.

 

[jaybray]

I have all the cleaners available for rimfire carbon cleaning and finally decided to give Free All a try as I read it worked well if left to sit for a few hours. Well I wasn't really expecting much but it sure does work well on rimfire carbon rings as it removes the hard carbon ring in my 1710 anschutz no problem. I saturate a .22 bore mop with free all and let it sit overnight and use a .22 cal nylon pistol brush spun by hand in the throat a few times and as per my borescope that ring is gone. CLR would work also but I won't use it in my rimfire. Give free all a try and it may work for you also.