Ahhh...Corrosive Primers

M

Mosin-Marauder

New member
I think I found a new cleaning solution for Corrosive Primed ammunition. Mr Clean All Purpose Cleaner with Gain. I ran some of it down the barrel of my 91/30 just for kicks today and it's working surprisingly well (better than hoppes 9 actually). This is how dirty my hand was after one pass through with a brush.



So yeah, that happened today.
 
Have you tried Windex? That is what I start the cleaning process with. Works pretty well.
Havent tried the Mr. Clean. Looks like it works. Now how about the hand cleaning?:D
 
As for Hoppes (when they still came in glass),I've been using an old bottle my dad had, darn near used it all up.

And I got it to come off with hand soap and scalding water. Wasn't too soft on the hands but it got it off. :P
 
Any water-based cleaning solution will remove the salts left behind in the barrel from corrosive priming. Corrosive priming leaves behind potassium chloride salts, which are the first cousin to sodium chloride, aka table salt. Salts are highly hygroscopic (attract moisture) which, in turn, react with the steel to form iron oxides (rust).

Salts dissolve in water; Therefore any water based solution will dissolve residual salts in your bore and remove them. I have always used just plain hot tap water with some dish soap added to help remove carbon smut. Also works for black powder, too.
 
I think I'm just going to buy a bottle of Mr Clean solely for the purpose of cleaning my Mosin. And it gives it that nice Gain-y/18 year old surplus smell. :D
 
I use Windex if I shoot corosive ammo . When I used to soot muzzel loaders I used boiling water with Dawn . The steel would get hot enough to dry itself . That should work for corrisive ammo too . I quit shooting black powder and corosive both but thats just me .
 
Corrosive primers are not a big deal. All the milsurp ammo i fired in the 50s and 60s was corrosive. Back then much of the imported hunting ammo in milsurp calibers was also corrosive. Never had a bore rust.

i joined the US Army in early 1959. In basic training we cleaned our M1 rifles for three consecutive days after firing using GI bore cleaner.

Simply clean the bore after shooting. GI WWII bore cleaner works well: So does soapy water.
 
I still like to be sure that my barrel won't rust. I've have seen some rust accumulate before I knew about my rifle. The guy that I bought it from fired a few surplus rounds and didn't clean it. Luckily I cleaned it before it became pitted.
 
Bolt out, muzzle down in a small pan or can with a cup of slightly soapy water. Use the rod-and-patch as a suction pump to suck the mix up the barrel. Three or four pumps is plenty.

Then, rinse in the same manner with very hot tap water. Dries faster. Follow up with an oily patch.

That's what I was taught and it worked just fine for a couple of years of shooting about a thousand rounds of WW II GI ammo through my 1917. :)
 
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