Finnish M39 Mosin Nagan

LiGuang

LiGuang

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Finnish M39 Mosin Nagant and Russian Mosin Nagant are similar? Found some mentioned Finn Mosin is accurate.
 
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Fin rifles usually have new barrels. By manufactures like tikka,sig,sako and a few more. They produced much better barrels and stocks, two stage triggers and fine tuned the mosin to get every drop out of the platform the russians missed. To the point the fins to this day still use a sniper rifle built on the same old hex receivers. Watch what you get if you decide on a m39. Some are chambered for the 7.62x53r (most mosins take 7.62x54r)so unless you reload you won't be doing much shooting
 
I got a Finnish M39 off a fellow CGNer (thanks Stickhunter!) and I can tell you that it is definitely more accurate and well built than your average Russian Mosin Nagant. It is about the same as a very good Mosin sniper in terms of accuracy. The bores on a lot of M39 rifles are actually tight enough that you can accurately shoot .308 caliber projectiles, which makes reloading components a lot easier to come by and saves the precious .311 projectiles for the Enfield.
 
I tried chambering 54r brass in my M39 and you can very faintly see markings on the outside of the case rim where the brass came into contact with the rifling grooves. This leads me to believe that the chamber is slightly smaller than your standard 54r mosin.

Although everything I've read seems to indicate that you should have no problem firing 54r in a 53r chambered rifle. You might just have issues with closing the bolt on some rounds, but they are otherwise interchangeable.

jeanlikethis said:
How can you tell if the M39 is talking the 53r, or 54r? from outside?
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The case length of Russian M1908 cartridge is 53.72mm; the Finn one is slightly shorter: 52.88mm. Info is from "The Album of cartridges for small arms and heavy caliber automatic weapons(from 6.5 to 37mm)" printed in Moscow in 1946.
 
Thanks. I was always wondering does the small difference like 0.5mm will make big difference to the chambering? what will be the production tolerance then. Why Russian made 0.311 the bullet size as compare to well settled .308? So intruders will not be able to use the captured bullets? They are totally different anway, 308 54r will not fit into 308 Win.

Fuzzy Wool Hat said:
I tried chambering 54r brass in my M39 and you can very faintly see markings on the outside of the case rim where the brass came into contact with the rifling grooves. This leads me to believe that the chamber is slightly smaller than your standard 54r mosin.

Although everything I've read seems to indicate that you should have no problem firing 54r in a 53r chambered rifle. You might just have issues with closing the bolt on some rounds, but they are otherwise interchangeable.
Click to expand...
 
jeanlikethis said:
Thanks. I was always wondering does the small difference like 0.5mm will make big difference to the chambering? what will be the production tolerance then. Why Russian made 0.311 the bullet size as compare to well settled .308? So intruders will not be able to use the captured bullets? They are totally different anway, 308 54r will not fit into 308 Win.
Click to expand...

the bullet is in the cartridge case the fins used a barrel that takes a .308 inch bullet where the Russians use .311 inch bullets this has nothing to do with the chambering or .308 Winchester
 
Fuzzy Wool Hat said:
I tried chambering 54r brass in my M39 and you can very faintly see markings on the outside of the case rim where the brass came into contact with the rifling grooves. This leads me to believe that the chamber is slightly smaller than your standard 54r mosin.

Although everything I've read seems to indicate that you should have no problem firing 54r in a 53r chambered rifle. You might just have issues with closing the bolt on some rounds, but they are otherwise interchangeable.
Click to expand...

In a rifle's chamber, in front of the end of the case mouth, there is a smoothbore section, and then the rifling starts. There in no way that a cartridge case can touch the rifling. Are you seeing the remains of the crimp?
 
tiriaq said:
In a rifle's chamber, in front of the end of the case mouth, there is a smoothbore section, and then the rifling starts. There in no way that a cartridge case can touch the rifling. Are you seeing the remains of the crimp?
Click to expand...

http://imgur.com/zZVU6OB

The case had no crimp on it. I'm just calling it as I see it. Also aside from the fact that it's corrosive, it seems like there's no problem using surplus 54R in an M39
 
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