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-   -   Rust on my M91/30 (http://www.firearmstalk.com/forums/f18/rust-my-m91-30-a-77308/)

Bladerunnerfury 11-28-2012 06:24 PM

Rust on my M91/30
 
3 weeks ago I picked up this beautiful 1932 hex Mosin and this weekend I took her out hunting and when I went to clean her Monday after school there was rust all over the mag, the receiver, and the bolt. is there anything I can do to stop it? I cleaned it up but its making spots on my gun.

orangello 11-28-2012 06:26 PM

Did you use that surplus ammo with the "corrosive" primers? Did you clean it after every firing? Did you leave her a little oily when stored? You didn't store it in a zipped-up guncase, did you?

rhyno13 11-28-2012 06:30 PM

I use a product called Sili Kroil and it is a very good penetrating oil with silicone that will actually break down rust and prevent it from coming back. You should give it a try.

Bladerunnerfury 11-28-2012 06:47 PM

Quote:

Originally Posted by orangello (Post 1030818)
Did you use that surplus ammo with the "corrosive" primers? Did you clean it after every firing? Did you leave her a little oily when stored? You didn't store it in a zipped-up guncase, did you?

I shot 2 corrosive bullets and about 3 winchester silvertips and I stored her in a zipped case after. Gave her some lube about a day before the trip it was snowing up north and she rode uncased strapped onto a 4 wheeler

orangello 11-28-2012 06:53 PM

Quote:

Originally Posted by Bladerunnerfury (Post 1030840)
I shot 2 corrosive bullets and about 3 winchester silvertips and I stored her in a zipped case after. Gave her some lube about a day before the trip it was snowing up north and she rode uncased strapped onto a 4 wheeler

It is my understanding that fully zipped cases trap the moisture, as does the foam in those foam-lined cases. It would be better off in a cabinet. When using the old surplus ammo, it would be a good idea to clean that day and coat it with some pre-storage oil, even if it is just a hose-down with Remoil. It will wipe off easy enough when you are ready to go hunting/plinking/avalanche-freeing.

We don't get snow here much, but i doubt it helped.


I have heard that bear grease is an excellent rust preventative. ;)

Bladerunnerfury 11-28-2012 07:20 PM

I just don't want to have a ruined gun because she is very pretty :D and I want only the best for my girl :P

SSGN_Doc 11-29-2012 12:26 AM

Yes, the temp and moisture changes along with keeping it in the case will cause condensation and moisture issues and encourage rust. If you have to take it from cold to warm it should be uncased and then wiped down and dried off before it is put away, after it has come back to room temp in the house. Then a quick wipe with some oil.

After shooting corrosive ammo the bore needs to be hit with some hot water to remove the corrosive salts from the primers, then dried and oiled.

Bladerunnerfury 11-29-2012 06:21 PM

Should my gun be ok function wise? I got rust on the part of the bolt where the back of the case touches it.

orangello 11-29-2012 06:22 PM

I would want to remove the rust before using it, at least any internal rust. It probably wouldn't impair function, but why chance it.


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