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bore solvent

 
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  #36  
Old 05-03-2014, 01:51 PM
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Re: bore solvent

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Originally Posted by Damascus View Post
Sweet's 7.62 and Barnes CR10 are a lot alike, where Sweets is thicker like a gel, and Barnes is thin. The Barnes seems to me a bit more aggressive since the patches come out blue much quicker than the Sweets, but I believe its harsher on barrels, so I only use it on badly fouled bores.
When the Barnes CR10 product first came out, the instructions lacked the warning now placed on the product, about not leaving the product in the bore for longer than 10-15 minutes. In fact, the advertising on the bottles stated is was completely safe and not harmful to the barrel. This was in the day when strong ammonia based cleaners were hitting the market, and it wasn't yet common knowledge (at least to me) that ammonia attracts moisture and will corrode the barrels if left in the bore for any length of time. The higher the ammonia concentration, the more agressive the solution is at removing copper, but the harsher on steel when left in the bore. I'm sure this is the reason that for many years, ammonia based bore cleaning solutions were diluted to lesser ammonia concentrations.

As a consequence of the instructions claiming absolutely safe - will not damage bores in the slightest - I severely corroded the bore on a factory Win M70 7mm Mauser chrome moly barrel. I mean the bore was grown in with corrosion like hoar frost. Surprisingly, the barrel still shoots pretty well. But I had to fire bullets down the bore to scrap away the corrosion. Bronze brushes wouldn't touch it.

My last use of the CR10 product was on a stainless Lilja barrel. I proceeded much more cautiously, but again, despite the instructions stating that the product was completely safe on rifle bores, I observed a slight corrosion film building on the bore surface. Just enough to notice. How's that saying go? Fool me once, shame on you. Fool me twice, shame on me.

This was many years ago. Back in the mid-90s. Just last month I gave that bottle of CR10 to a co-worker, who knows not to leave CR10 in the bore for any length of time, and to flush the product out of the bore after use.

Barnes later included the warning statement which remains on the product to this day, to not leave CR10 product in the bore for any longer than ~15 minutes. The warning came too late for me. The M70 7mm Mauser is now a salt water deer hunting rifle, which I leave down on Kodiak Island. The salt water isn't any more corrosive than Barnes CR10.

Bore Tech Eliminator and Bore Tech CR+2 have never damaged any of my bores, and they clean just as effectively as the potentially damaging ammonia-based copper removing bore cleaners.
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  #37  
Old 05-03-2014, 03:45 PM
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Re: bore solvent

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Originally Posted by J E Custom View Post
I have not done some of the test like others have and can't argue with the results but I do believe that if you follow the instructions for the product you have it will give you better results.

Some products are very mild and some are very, very harsh and can not be left in the bore for very long without damaging the bore.

I have and use at least 4 different kinds of solvent for different reasons and needs.

I use the strongest when I am working on a barrel that Is badly fouled and I have the time to stay at it until it is clean. after it is clean I use a mild solvent to make sure that I don't leave any of the strong solvent left in the bore and then use a light oil for storage.

When I have more time or am breaking the barrel in and/or the bore is nor to bad I like to use something like the Butches bore shine Followed by some light oil for storage.

If I don't have the time at the end of a shooting session to clean the barrel quickly I use some Bore
Tec Eliminator because I can leave it over night without harming the barrel. (NOTE: It is only one of several solvents that can be left in the bore for storage).

So In My Opinion there are several choices of solvents that will perform well as long as they are used as directed. If you don't have a strict regiment of cleaning the same every time it may be necessary to use several different solvents to get the best results.

There are some solvents that I don't use because of there lack of performance when used as directed and the mess they make. For long term storage, after the barrel is clean and all bore solvent is removed, I use light oil or a rust preventive on stainless or chrome moly.

When a barrel is brought back into service I dry patch, clean with a mild solvent and lightly oil for the first shot.

This just my opinion and the way I use different solvents based on need and time.

J E CUSTOM
Exactly my bore cleaning regime - ONLY FOR COPPER. But I struggle to get all the powder fouling out of my barrels. For carbon, I agree with Tony Boyer and use JB or Iosso frequently. It still takes a lot of scrubbing.
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  #38  
Old 05-03-2014, 04:14 PM
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Re: bore solvent

JB Bore Paste is the best barrel cleaner ever made. Not! It removes barrel steel with the same zest as any other fouling. It's abrasive and makes no distinction between barrel steel or any other fouling. The best part about it is it has been a boon to the barrel makers and gunsmiths alike. I think we should include a giant tube of that stuff with every barrel. Easy money.
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  #39  
Old 05-09-2014, 03:29 PM
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Re: bore solvent

Patch-Out is what I normally use
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  #40  
Old 05-10-2014, 03:27 PM
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Re: bore solvent

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Originally Posted by mustang58 View Post
I use GM top engine cleaner mixed with Kroil for the first scrub. It won't remove copper but is a little cheaper that some of the other solvents. I saw a gentleman using diesel fuel at the Hunter Nationals. He won the 100 yds. Don't know what that says. I have a couple recipes for some supposedly pretty good stuff but can't find all the ingredients. I sent my wife to the pharmacy to get sodium hydroxide and they almost put her on the terrorist list.
Get yourself some Drano crysrals. Thats sodium hydroxide. Goot shitte eater and tirlet paper eater too......
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  #41  
Old 05-20-2014, 04:12 PM
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Re: bore solvent

We use alot of the Very lube "professional gun cleaning foam". Its easy to use and works great. Plus if you can understand Czech you can read the instructions! It has the name here in the shop as "Chernobyl foam"
Chris
Benchmark Barrels
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  #42  
Old 05-20-2014, 10:56 PM
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Re: bore solvent

I've pulled a lot of aluminum and light alloy deposits from snowmobile jugs (when the operator in search of ultimate power leaned it out too much and stuck a piston)...common on high performance 2 strokes with sodium hydroxide pellets made into a paste with distilled water.
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