Mosin Nagant Issue


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Cactus Jack Arizona
March 6, 2013, 06:46 PM
I have a problem with my MN. Before firing, the bolt functions easily and smoothly. However, after each shot the bolt becomes increasingly more difficult to operate. By the 4th shot it becomes virtually impossible. My brother and I had to work together to force the bolt to finally move.

I am puzzled as to why I am having this issue. I've not experienced this on any other of my bolt actions. I just picked up my MN from my gunsmith today. He said that the rifle was in very good shape, both externally and internally. Although he's a master at the AR's, Glocks, and any other modern firearms, his knowledge of old foreign war rifles is limited.

So, if anyone has had a similar issue as I'm having, how did you solve the problem? Any help would be greatly appreciated.

Thanks

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primalmu
March 6, 2013, 06:48 PM
Do a Google search for "Mosin Sticky Bolt."

You don't mention WHEN it becomes difficult to operate. I assume it is difficult to open after you've fired a shot.

bainter1212
March 6, 2013, 06:50 PM
Yeah, you know how you cleaned it really really good??? Nope. There's still some cosmo in that bad boy. Clean it again. Take the bolt apart.

Cactus Jack Arizona
March 6, 2013, 06:54 PM
Prim, yes. It sticks after each round fired. them you fire it, the more it sticks.

Cactus Jack Arizona
March 6, 2013, 06:58 PM
Bainter, I was afraid someone was going to say cosmoline. :uhoh:

Apple a Day
March 6, 2013, 07:02 PM
Make sure you get that chamber clean. I mean dig into that puppy with some Q-tips all the way forward. Then clean the barrel from the chamber to the muzzle.
Which model is it? What kind of ammo? When my M-44 was "new" it got a little sticky shooting laquer cased ammo. I never had the same problem with the 91/30.

Cactus Jack Arizona
March 6, 2013, 07:03 PM
Sorry everyone about the bad grammar and spelling. My desktop died and I'm now using a laptop. I don't like change. And I keep hitting that stupid pad in the center. :cuss:

Cactus Jack Arizona
March 6, 2013, 07:06 PM
Apple, I have a 1938 Hex Tula.

tahunua001
March 6, 2013, 07:08 PM
that's actually a problem with the mosin nagant design. the bolt handle is too short to offer proper leverage and since the lifting of the handle has to cock the firing pin it is very difficult.

Cosmoline
March 6, 2013, 07:12 PM
The bolt design is perfect. You just have to use it right.

Don't pinch it in your fingers and try to move it with your hand muscles.

SLAP IT UP with your palm. Use your arm muscle. Then push it down again with your palm and arm muscles. You won't hurt it. In time you can get a fluid sweeping movement that slaps the bolt open and drives it home.

Some ammo in some rifles tends to be stickier than others, so you can often have some relief by swapping ammo types. Try switching to copper wash if you're using green lacquered cases for example.

Centurian22
March 6, 2013, 07:18 PM
Search sticky mosin bolt under the user Iraqveteran8888 on YouTube. He has a great video about using a 20 gauge shotgun brush chucked in a cordless drill to really clean out the chamber. I used mineral spirits and hoppes with mine.

Good luck.

whatever
March 6, 2013, 07:31 PM
20 gauge brush + drill + cleaner of your choice works great. I used a bit of heat to bring some more of the cosmoline out too. Maybe overkill but it worked for me.

USAF_Vet
March 6, 2013, 08:07 PM
20 gauge brush + drill + cleaner of your choice works great. I used a bit of heat to bring some more of the cosmoline out too. Maybe overkill but it worked for me.
This.

I had the sticky bolt on my M91/30, removed it from the stock, disassembled the bolt and dropped the pieces in a lot of boiling water (do not use one of your wife/girlfriend/moms good cookware, get a cheap pot from Goodwill).

I took a propane torch to the inside of the chamber to get it good and warm, then hit the chamber with a 20 gauge bore brush attached to a drill. Then run some patches around the chamber soaked with CLP.
Rinse.
Repeat.
Do it again.
Once more for good measure.

Dump the boiling water, should have plenty if Cosmo floating in it by now. Soak the bolt parts in CLP and make sure all the water is gone. Reassemble.

Put the rifle all back together, and go shoot it.

meanmrmustard
March 6, 2013, 09:13 PM
The bolt design is perfect. You just have to use it right.

Don't pinch it in your fingers and try to move it with your hand muscles.

SLAP IT UP with your palm. Use your arm muscle. Then push it down again with your palm and arm muscles. You won't hurt it. In time you can get a fluid sweeping movement that slaps the bolt open and drives it home.

Some ammo in some rifles tends to be stickier than others, so you can often have some relief by swapping ammo types. Try switching to copper wash if you're using green lacquered cases for example.
This, in spades. It's a Mosin: Use that bolt with conviction.

tyeo098
March 6, 2013, 10:36 PM
And you can boil the bolt parts too

nathan
March 6, 2013, 10:49 PM
I used the bore paste and clean the chamber with brush wrapped with patches.
And flushed with Ed's Red my own solution mix. Works great.

caribou
March 6, 2013, 11:16 PM
Sticky Bolt is the Mosins way of saying "Clean me" of what evers in the chamber. Keep the bolt shiney too, and clean up and smooth out any burrs along the cocking piece.

Steel cased ammo is a bit more 'springy' and after the pressure is down its contracted faster than brass will, and it reflux's soot back along the case, much much further than brass cases will. Shoot and compare, thats how I found out.

Tolkachi Robotnik
March 7, 2013, 12:04 AM
I shot two or three cartridges of Russian make from a aquamarine or turquoise box years ago through a M44 carbine Mosin. There was a picture of a moose on the cheap looking cardboard box. Two of three required some 2X4 work on the bolt to open it easily. All three had noticeable recoil stoutness.

I pulled the remaining 17 bullets and removed 10% of the powder from each. Put the cartridges back together and they fired about the same as regular Wolf steel cased ammo. I believe they were down to about 39.4 grains when I was done, of some really dusty small powder. They were 204 grain bullets and sort of brown instead of usual green lacquered look of Wolf.

Think how much power it must take to push steel cases out to stick that bad!

A longer bolt handle would help, Mosin's have short bolt handles.

They are also pretty tough.

Your problem might be ammo more than the rifle. Some Sellier and Beloit ammo is also not well metered, some shells being much stouter in same box compared to others in same box enough to hurt accuracy badly. Some old surplus ammo is also amazingly hot. I have never heard of the rifles failing but the trigger men sometimes let out air pretty hard.

mgkdrgn
March 7, 2013, 03:29 PM
The bolt design is perfect. You just have to use it right.

Don't pinch it in your fingers and try to move it with your hand muscles.

SLAP IT UP with your palm. Use your arm muscle. Then push it down again with your palm and arm muscles. You won't hurt it. In time you can get a fluid sweeping movement that slaps the bolt open and drives it home.

Some ammo in some rifles tends to be stickier than others, so you can often have some relief by swapping ammo types. Try switching to copper wash if you're using green lacquered cases for example.
Hey, it's Russian ... force is all it understands. ;-)

funnelcake
March 7, 2013, 03:46 PM
Just get a couple of cans of generic brake cleaner (aerosol), remove the barreled action from the stock and spray away. Cosmoline no matter how crusty will melt away quickly - no scrubbing required. Follow with your choice of gun oil.

Funnel

Deer_Freak
March 7, 2013, 04:12 PM
I just hosed my mosin nagant down with WD-40. Then I used a slow turning 1/2" drill to clean the chamber and the bore. I cleaned the barrel of a friends Mosin nagant by spraying it down with WD-40 then I walked into nearby lake to fire it. The excess wd-40 and cosmoline set the surface of the water on fire for a few seconds. No one thinks to take picture when something like that happens.

DPris
March 7, 2013, 05:03 PM
I'd disagree that the Mosin's bolt design is "perfect". :)
Far from it.
Too short for most efficient leverage, even with a clean chamber & bolt.
I have one rifle that requires malleting with steel cases, slapping with the palm doesn't get it open.
Denis

stubbicatt
March 9, 2013, 08:38 AM
I just hosed my mosin nagant down with WD-40. Then I used a slow turning 1/2" drill to clean the chamber and the bore. I cleaned the barrel of a friends Mosin nagant by spraying it down with WD-40 then I walked into nearby lake to fire it. The excess wd-40 and cosmoline set the surface of the water on fire for a few seconds. No one thinks to take picture when something like that happens.
Hmmm... Lake Erie in the 70's?

ball3006
March 9, 2013, 02:38 PM
I bet you are shooting that green steel cased ammo? The coating on that ammo will become sticky when subjected to the heat of firing. You need to really clean your chamber and change ammo....All of my rifles react this way. No problems with other ammo...chris3

bluekouki86
March 10, 2013, 06:46 AM
Had the same issue with all 4 of my MN's. The laquer coated ammo is the primary reason I was having problems. I switched to the yellow tipped Bulgarian brass surplus, then eventually started hand loading. I've got a tula 91/30 PU sniper and what a HUGE difference in a good hand load.

DPris
March 10, 2013, 05:40 PM
The particular rifle of mine that has to be malleted open does it with surplus AND US-made steel-cased rounds.
If the design had a longer bolt handle & it was bent, there'd be much better leverage.
I had a longer and angled bolt installed on one of my Mosins, makes a world of difference.

Denis

monotonous_iterancy
March 10, 2013, 06:42 PM
I would recommend that you take the bolt apart and wipe away anything that even remotely resembles cosmoline. Even a little bit will turn to glue as it gets hot, which is why it gets stickier the more you fire it.

foghornl
March 11, 2013, 07:57 AM
When shooting Mosin-Nagant rifle, bolt works you.....

My Romanian M-44 (1954 vintage) had the sticky-bolt syndrome untill I soaked the bolt overnight in Mineral Spirits, and used the 20-ga brush in the drill method. Last bit of work was just a quick touch of Flitz! on a properly-sized 'wool mop' in the drill.

Orion8472
March 11, 2013, 09:44 AM
I guess this wasn't much of an issue, back when they were using them in war, because they hadn't been cosmolined at that time, right? However, did they use lacquered cartridges back then and did that mean they were constantly trying to clean that crap out of their chambers?

By the way, I DO have an M-44 with a fair amount of cosmoline under the wood. Does that "break cleaner" method reallly work? How much, . . . how long, and what is the best way to attack it once it has been sprayed on there?

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