Some Suggestions

[Nuclearcricket]

I picked up a rifle in pretty much as new condition but was manufactured in or abouts 1973 according to the research I have done. The rifle was coated in cosmoline and I have been able to pretty much get most of it off and out of things. The bore however is an entirely different critter. Using a nylon brush I have scrubbed it with mineral solvents, eds red, Montana extreme copper remover, and just now some break free. I can shine a light up the bore and take a look and it still looks like an old dirt road with gravel on it. But it doesn't look pitted. The patches are coming out black to grey black and some have shown blue from copper.
Do any of you fine folks have any suggestions of anything else I might try to get out what ever is in there? I have been working on the bore for the past 4 days, it is better than when I started but not where I want it to be before send a round through it.
Thanks in advance
Sam

[Don McDowell]

Get ahold of the finest steel wool you can find, wrap a bit of it around a brass brush, soak it with 3n1 oil and run that a few passes thru the bore, then wipe with a dry patch and go back after it with the copper killer.

[Kurt]

What I found that works very good is a hot air gun will gets the old hard cosmoline soft. Paint thinner if you have some will cut it also.

[laowho]

I'd probably wanna "season" it by the Lee Shaver method anyway, so my tool #1 would be 0000 steel wool. Second tool would probably be some Eliminator (for copper/lead) and Slip 2000 (for carbon). Dunno why I wouldn't combine. Here are where I learned the aforementioned

Browning and Lee Shaver "Barrel Break-In Process"
http://www.texas-mac.com/Barrel_Break_in_Process.html

Precision Shooting Magazine article on best cleaners
https://www.slip2000.com/blog/precision-...-magazine/

Cheers

[Kurt]

I did a search on some cleaner and found this. http://www.malcoautomotive.com/Images/Pr...emover.jpg

[Nuclearcricket]

Thanks for all the suggestions. I went with what Don suggested with the steel wool, but please don't hate me, I just couldn't for the life of me find any 3n1 oil. I am not sure if I ever owned any. I do have a good variety of high tech and low tech oils and just used some Kroil. It really cut out what was in there, now instead of looking like a gravel road, it looks more like a grooved dirt road. All that has been coming out lately has been black and I am just wondering if perhaps it had been fired with a bunch of blanks and then not cleaned. Anyhow it is looking better with each scrubbing now and hopefully one of these weeks I will get a clean patch out of it and then can take it out and see if it shoots.
Thanks again.
Sam.
P.S. Next trip to the autoparts store I will take a look for that Cosmoline remover, might be good to keep on hand. Never know when it will come in handy.

[Lumpy Grits]

ATF(automatic transmission oil)is a very good solvent.
Even better when you mix it 50/50 with Turpentine.
Gary

[JReed]

ATF and paint thiner is what I used to get the goo out of my Enfield and a Mosin. Soak a patch and run it down the bore with an eyelet jag let sit for an hour then run a few dry patches to see what left. Also helps if you can get the barrel warm.

[Nuclearcricket]

thank you all for all of your help. I have now gone from a "I think it has some rifling in there" to "its nice and shiny". There are some things in there that look rough and that just might be partly due to the way they made the bore I don't know. The rifle in question is a 1973 vintage Yugo SKS. Supposedly UN-fired or at least used very little. Using the Montana Extreme Copper Killer showed me that it has been fired at least once, the patches came out really blue. The rest of the gunk looked like a mix of carbon and cosmoline. I ran a few patches through it this morning, some JB and some more solvent and there is just a little staining on the patch, more brown than black. A good brushing and a soak repeated a few times should hopefully get out most of what ever is left in there. At least now I will not be afraid to fire it.
Thanks again.
Sam