Tinkering with my Mosin { Pic heavy! }

Saafire

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Sudbury Ontario
Heya,

Having hunted last fall with my Mosin 91/30 I pretty well wore the shellac off the stock. So I spent the winter scraping the old finish off with a paint scraper and a knife. ten the grueling part began.... how to refinish it. I asked and talked with all the experienced guys around in Sudbury that I know and finally short listed a Tung oil finish. Then someone was like, hey we not try Pine Tar oil. ?!?!? WTF is that? so I did some research, and it a nice old world feel and nostalgia about it. so for a gun that's almost 100years old its seemed to fit. then came the dirty part.

Pine tar isn't quite black its like molasses, dark and gooey. A 50/50 mix of pine tar and boiled linseed oil makes a manageable product that soaks into rags and everything else it touches. Add a little heat and it bubbles, smokes and soaks into the wood nicely... until my wife started to complain about the flaming gun stock I was holding on the front deck. I switched to the soak it, rub it in and let it sit until it absorbed, then clean it up and start over again. about 8 applications in we finally got a decently warm day and I set the stock out in the sun to bake, no fires this time. I cleaned up the stock and let it sit for a week and wiped it down occasionally to remove anything that wept out. the texture of the finish was vaguely waxy at the time but felt good in the hand. I left the stock in my vehicle one day to bring it for show and tell, and even the extreme car heat only made it weep a small amount. so fast forward another month and the stock now feels dry but grippy.

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I have done a little work this gun, like a lot of Mosin's it shot high, so I extended my front sight with an electrical connector, I painted it orange for hunting.
the blue pin one fit snug on the front post and a small dab of silicon RTV keeps it from moving.

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here on the back side you can see the split in the connector after you remove the blue jacket.

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this is the connector I used.

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Here is the shims and "cork" (fiberglass tape) I have added. Previously I have only corked the front of the barrel at the barrel band. I'll have to see if this is an improvement. Not the brass shim on the front of the recoil lug. previously the barrel had play front to back before I added this shim.

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and here is the final product!

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Tomorrow I will take it out to the range and test is at 100 yards. I was shooting less then 2" with reloads last year, Maybe the extra shims will help.
 
I put 25 rounds down the pipe. 19 surplus and 6 price fmj. Things started out great, but the groups opened up and went from 2" to 8x11 inches and I was searching for holes. Going to have to tear it down and see what's going on inside. Original condition was about 6" and right now it is worse. I would have stripped it at the range but it was time for the bullseye match. I can post pics later this week of the grouping and any issues I suspect under the hood.
 
Try removing the pads under the chamber and keep the front pad at the front barrel band (or wrap the barrel in some oil soaked flannel or light canvas). Is the barrel floating? Make sure its floated from the chamber all the way to the nose cap. Also add more shims above the recoil lug and tang....mag might still be in contact with receiver. There should be 1-3mm of clearance between top of mag and receiver.

I put 25 rounds down the pipe. 19 surplus and 6 price fmj. Things started out great, but the groups opened up and went from 2" to 8x11 inches and I was searching for holes. Going to have to tear it down and see what's going on inside. Original condition was about 6" and right now it is worse. I would have stripped it at the range but it was time for the bullseye match. I can post pics later this week of the grouping and any issues I suspect under the hood.
 
Get rid of the chamber bedding. A mosin is essentially pillar bedded at the front of the action just behind the recoil lug and at the tang. It's not supposed to be supported at the chamber, that's your issue most certainly.
 
Well after some more tinkering, it was finally back to grouping well. I removed all but the shims front and back of the recoil lug, as kept adding to the barrel band shims. Once I added enough for the front barrel band to be very snug getting on. It was back to were it should be.

I also took the time to make some partridge loads to use during big game hunting. A 87gr rn pistol bullet in front of 5gr of unique was pretty consistent at 25 yards. Will be fun for hunting, especially when everyone is expecting a bang and it goes pop!

I found the pine tar at the TSC store, a farm and tractor store. But any animal supply place should be able to get some. It smells like old timer medicine... "that'll put lead in yar pencil!"

Other than the front sight becoming lose after the cleanings got the the silicone it's pretty well ready. When I get a chance I'll post some more pics... Seems I had a copper fouling issue too.

Are copper cleaning patches supposed to be dark blue like denim?

Saafire.
 
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