Warning to Mosin Nagant uses and other surplus rifle owners
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Old 05-19-2014, 10:04 PM   #1
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Default Warning to Mosin Nagant uses and other surplus rifle owners

Got a mosin in yesterday. Guy hadn't cleaned it real well since the last range trip about 2 months ago. Got a hold of it and there was surface rust inside the chamber and the barrel. Guys the surplus ammo is EXTREMELY potent and WILL cause corrosion. Running a few patches through with Hoppes isn't going to do anything... You need to run a brush through, then soak the barrel in Hoppes and then start running your patches. Hoppess and most gun cleaning solvents are designed so they eat away at the GPR and salts and whatever else might be lurking in there. Spend some time with your guns, or you may just end up ruining them. These surplus rifles, hell any gun, NEED attention and to be cleaned PROPERLY. Also a good tip when you are done running your patches is to soak a CLEAN patch with gun oil and put it on in there. This creates a pretty nice barrier to prevent rusting (to an certain extreme) and overall keep the gun in nice working condition!

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Old 05-19-2014, 10:20 PM   #2
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hoppies is a very good residue remover its designed for blackpowder.

but your right you really need to soak the bore good.

best way to clean a mosin after using corrosive surplus is the same as a blackpowder gun run very hot tap water not boiling through the bore. then clean as normal.

i remove the gun from the stock before cleaning. the bolt should be disassembled and cleaned especially the firing pin channel.

lube very well recheck the bore and bolt in a few days for signs of rust in case something got missed.

nowadays i just stick with noncorrosive and leave my spam cans for emergency use

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Old 05-19-2014, 10:32 PM   #3
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Com Bloc milsurp ammo has a corrosive primer- instead of using lead azide, it uses potassium chlorate, which burns to potassium chloride, a first cousin of table salt. Like all salt, it is water soluble.

My means of cleaning after shooting- and there ARE other means- put rifle into padded vise, muzzle down. Put bucket under muzzle. Remove bolt. Using plastic funnel pour at least 2 quarts of HOT water thru the chamber and bore. 2 drops of Dawn dish detergent on bore brush, 10-20 strokes of bore brush, pour another 2 quarts of hot water thru bore. While it is draining and air drying, wipe down bolt with damp cloth, dry and oil it.

Bore will dry in 2-3 minutes from the heat. Run a dry patch or two thru bore, followed by oily patch.

Remember, with the exception of M1 Carbine ammo, every round fired by every combatant in WW 2 was corrosive. It is not the kiss of death to a gun, but rifles MUST be cleaned after shooting it, and oil based products do not remove the salt from corrosive primers. WATER does.

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Old 05-19-2014, 11:22 PM   #4
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I always used the Windex with Ammonia D method when I shot corrosive through my Mosin rifles. Worked like a charm.

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Old 05-20-2014, 12:42 AM   #5
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I had a Mosin with the bore that looked like mud when I purchased it. I loosened the mud first, then stood the rifle on the muzzle, set up a siphon on the workbench, and let warm water run through it, hands free. Would do it again if need be.

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Old 05-20-2014, 02:08 AM   #6
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Best way to clean a Mosin.
Find the deepest part of any lake. Throw it into the lake at the deepest part,and then go back to shore without it!

I couldn't resist!!!!!!!

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Old 05-20-2014, 05:30 AM   #7
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I was testing modifications to my sights today. I shot this group at 117 yards standing, with my rifle propped on a tree. You get what you pay for. This is 180 gr winchester ammo. I have 880 rounds of milsurp ammo. I pray I never need to open the cans.

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Old 05-20-2014, 09:40 AM   #8
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C3- was taught the same stuff by my Uncle to care for the 1903's,.. And he did it to his Krags,..they are spotless....


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Old 05-20-2014, 10:00 AM   #9
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Quote:
Originally Posted by DrFootball View Post
C3- was taught the same stuff by my Uncle to care for the 1903's,.. And he did it to his Krags,..they are spotless....
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We didn't dunk the M16 every day. But we took the M16A1 into the shower for inspections. Giving your rifle a bath is a US military tradition.
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Old 05-23-2014, 01:04 AM   #10
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I would run patches of windex w/ ammonia (5%) a bunch of times, then a tight fitting bore brush, a couple dry patches, bore brush, Then carefully pour plenty of boiling water through the chamber & bore. Then and only then continue cleaning as if a regular rifle (hoppes, etc). Another option is to get sweets 7.62, or Tipton w/ ammonia in it (comes that way), you can get it at Midway. A good long term protective oil is, believe it or not, automatic transmission fluid, also good for cold weather.

Edited to fix auto correct.

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