Corrosive primers: Cleaning tips?

Marko Kloos

Inactive
I recently bought a Steyr-Mannlicher M95/34 carbine, and I managed to corner the market on 8x56R ammo in this corner of Tennessee. The problem: this ammo hasn't been manufactured since the late 1930s, and the hundred-odd rounds I managed to grab (on Mannlicher clips, no less!) are probably blessed with corrosive primers.

Does anyone have any quick tips on how to properly clean a rifle after shooting corrosive ammo? I know you're supposed to use soapy water, the idea being that the soap neutralizes the acid in the primer residue, but what's the best way of doing this? I also probably don't want to use the same brushes on a different rifle unless I clean the brushes thoroughly.
 
There's probably a wealth of information in the archives on this subject, but my quick sollution to your question if as follows:

For the bolt, dunk it in either hot soapy water or a water/ammonia mix (10:1). The rinse thoroughly in plain, hot water. Field strip the bolt (should take a minute). Then pop it in the oven at 200 degrees for about half an hour to thoroughly dry. Remove it, let it cool, oil lightly and reassemble.

For the action, have a funnel with a plastic tube attached that fits into the chamber. Douse the bore with very hot soapy water or the hot water/ammonia mix. Rinse thoroughly with clean, hot water. Wipe the bore down with cleaning patches, and wipe the action clean as well. The hot water will encourage the steel to dry faster. Once dry, clean your rifle as you normally would for non-corrosive ammo.

For your bronze bore brushes, avoid getting ammonia on them because they will dissolve. There is no problem using the same brush for corrosive and non-corrosive ammo. By the time you are applying the brush, the corrosive salts have been removed. If you want a little mental insurance, rinse your brushes with water and dry them in the oven.

Noban
 
Noban's got you covered, but I handle the bolts a little differently...

After washing with warm water, I actually boil them in a bunch of water (sort of the final rinse) for about 10 minutes, and then take them out and shake them off.

The metal is so hot at that point that it flash dries.
 
Another trick for small parts, if the wife is not around, is to run them through the hot wash, and heat dry dishwasher cycle! (This also works for black powder handguns..but only if she is not around!) I used to have a hose hooked to the hot water heater when I fired corrosive primed ammo. This hose fit into the chamber and sealed it perfectly. I would stick it in run some extra hot water through the bore, then take a bore brush, wet it, and dip it in a box of Tide laundry soap. Scrub the bore then rinse with hot water and repeat. I shot thousands of rounds of crossive primed ammo with no problem what so ever.
 
I can't belive that these salts are so tough that Hoppes #9 and the copper solvent won't clean them. Whats up with these darn things?

I'm stilll reading the archives, but how fast do these salts damage your gun? (CZ-52 in my case).
 
Drundel,

The salts aren't tough.

They're just not soluable in oil.

Here's an easy way to see what I mean...

Take some table salt, and throw it into some Hoppes.

Take some more table salt, and throw it into hot water.

The salts left behind from firing a corrosive primer in a gun react in the same way as table salt. They're brothers, really.

GI Bore cleaner (and other similar cleaners) had large percentages of water in them to dissolve the residue.

If you don't get the residue dissolved and out of the gun, it's going to rust.
 
The sun should not set on a dirty gun.

You don't need all this hot water and towels (are you guys delivering babies or cleaning guns?). I use and have for several years a product called "Green Magic." I get it out of a place called Centerfire Systems in Kentucky.

I have used it on a variety of surplus firearms--Swede Mausers, Finn M-N, Russian M-Ns, American M-1s, P-17, etc.. I clean the bolt and bore immediately after back from shooting. Then wipe bore out with clean patches and coat with light oil (I use Ox-Yoke) and lube bolt lightly (Kellube).

I love shooting this surplus stuff. You're handling history and highpower plinking--great fun!
 
Why pay for Green Magic when water is essentially free?

It sounds like you're paying a premium for nothing more than water in a bottle with a fancy name...

I'm selling a product called Wonder Wash, which is 100% hydrogen dioxide... Only $5.95 for 6 ounces... :D
 
G23CT, a lot of the time factor of how long before cleaning has to do with the climate. Here in South Louisiana rust can start to form within the HOUR! I mean that is experience talking, I have seen that happen! Two days can totally ruin a bore. In Art's country out in the deserts of West Texas you may go 2 days before even seeing the first signs of rust. A lot depends on the air humidity, the more you have the quicker you better clean.
To BigG: My lips are sealed buddy! :D
 
Mike, you are paying for the "magic" in Magic Green not the water like that special stuff you have out there.

Let's see what don't I want around my guns? How about Howie Metzenbaum, mall ninja, fire, large hammers, and WATER!!!

Yes, I know, all you former SEAL Team members (% of TFLers who are SEALs, Green Berets, Delta Force, Force Recon, SAS, or Selous Scouts is about 98%) will post and say water is just ducky to have on your guns. I guess I just discriminate against rust. Call me careful.
 
Nothing wrong with old fashion hot soapy water. I'd use a nylon brush since the purpose isn't to remove any metal fouling but rather to dissolve the salts. If you use a jag, you can do as the blackpowder shooters do and pour the hot & soapy water in a can, drop the action into the can, and push the jag through. As you pull the jag out, it will draw the water into the barrel like a pump. Continue doing this and you'll flush it out fast enough. You want hotwater because it'll heat up the metal and promote evaporation. Be sure to use a muzzle guard if you do it from the muzzle end.

BTW, you can buy an Enfield Armourer's funnel and which fits into most bolt actions. With it, you can pour hot water down without wetting (and swelling) the stock.
 
KS,

Knock the chip off of your shoulder and relax. If I have offended you with my glib statements, I apologize.

Ok, I don't know for certain what is in Green Magic, but I would bet HEAVILY that the only magic in Green Magic is a large proportion of water by weight.

Why?

Because you need water, in one form or another, to remove corrosive priming salts. There's no other way around it.

Potassium chloride is fully soluable only in water, or compounds containing water.

It's not soluable in oil, and depending on the strength is only mildly soluable in alcohol (the less water there is in the alcohol, the more insoluable the NaCL is).

It's also insoluable in acetone and other typical degreasing/cleaning compounds.

Again, I'd bet heavily that you are, without realizing it, putting water in your gun.

Using water to clean a firearm is not the big bugaboo that you seem to think that it is.

Water was the only cleaning solution used in the age of black powder, because it was readily available and it was effective.

The same is true of firearms in the corrosive primer era, even up through the last major use of corrosive primed ammo in American military service. GI bore cleaner, by weight, was over 60 percent plain water.

As long as you clean properly and don't let your guns soaking wet, you're not going to come even remotely close to hurting your gun by cleaning with hot water.

I've been shooting flintlock and blackpowder guns for years, and like Carlyle I have a device that attaches the hot water faucet to the touchhole.

After a day of shooting black powder, which leaves a potassium salt equally as hygroscopic (and rust inducing) as potassium chloride, I hook up the barrel to the faucet and run blazing hot water through it until the exterior of the barrel is hot to the touch.

After that I run several patches through the bore, to get the last of any large droplets of water that may remain, and sit it in the corner to finish drying and cooling.

After that I lightly oil the bore, and I'm done.

With my SKS I follow much the same procedure after firing corrosive primed ammunition. I've got roughly 2,000 rounds of corrosive primed ammo through my SKS, and have never had a speck of rust in the gas system from either corrosive priming OR the hot water that I use to remove the corrosive priming residue.

Ah, look at this, a website that lists Green Magic cleaner.

http://www.parish-supply.com/green_magic.htm

I don't know if this is the stuff that Centerfire Systems is selling, but if it's the same stuff, just repackaged, this is interesting...

Contained are mild organic acids, synthetic wetting agents and emulsifiers, and couplers whose special mixture yields the first Truly all purpose cleaner.

Mild organic acids -- Not sure what they would use, maybe even lactic acid, but I'd actually be mildly worried about those if I were to leave them in the bore too long.

Synthetic wetting agents and emulsifiers -- just another name for detergents.

Couplers -- No clue, but I'd bet that's just another name for water.

Look, clean your guns any way that works for you, but don't be fooled into thinking that you're not using water when you're cleaning after shooting corrosive primers. You're just paying more for it.
 
Check your history .............. US Army Air Force gunners in the 8th AF in England used to take their 50 Brownings into the shower with them after a mission )because of the corrosive priming compounds) then dry and oil them and have them ready for the next mission. Not a thing wrong with water IF its dried off and the weapon oiled afterward.
 
The shower procedure isn't limited to just corrosive ammo. I have a friend who has cleaned his shotguns in the shower for years. It looks funny seeing him hit the shower with his shot gun after a long day chasing pheasants, but they both come out clean, and smelling a lot better.
--Mike From Iowa
 
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