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 Post subject: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

Marksman

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Location: Baden, Switzerland
Last saturday I bougth one of Swiss K31 carbine. Built in 1942, caliber 7.5x55 Swiss http://en.wikipedia.org/wiki/7.5x55mm_Schmidt_Rubin
Here you can read about this carbine: http://en.wikipedia.org/wiki/K31

Here some photos I made:
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CZ75 SP-01 Shadow 9mm, Browning Hi-Power 9mm, SIG Sauer Mosquito Sport .22LR, Ram-Line Syn-Tech Exactor .22LR, TAURUS 66, .357 Magnum, 4", Swiss Karabiner Model 1931 (2 pcs), 7.5x55 Swiss (GP11)


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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

Master at Arms

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Congrats. List is growing :)


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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

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Beautiful rifle. It is in a very good condition. I never knew about this caliber. How well does it shoot? Have you tried it?

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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

Marksman

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No, I did not yet. First I have to find a club where I can try to shoot at 300m.
How accurate is K31?
They say - very accurate. Please ask someone from USA, there are many of these old rifles exported in the last years.

here, 420 yards shooting
https://www.youtube.com/watch?v=MF8KOJWsJq4

here, 640 yards shooting
https://www.youtube.com/watch?v=IsomougcK6E

here, 1000 yards shooting
https://www.youtube.com/watch?v=WZ-Lcvyrifw

here, Swiss-shooter at 300m
https://www.youtube.com/watch?v=EnVvIgmZF6c
:greetings-waveyellow:

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CZ75 SP-01 Shadow 9mm, Browning Hi-Power 9mm, SIG Sauer Mosquito Sport .22LR, Ram-Line Syn-Tech Exactor .22LR, TAURUS 66, .357 Magnum, 4", Swiss Karabiner Model 1931 (2 pcs), 7.5x55 Swiss (GP11)


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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

Marksman

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Location: Baden, Switzerland
here, One Mile, Open Sights, K-31 Swiss rifles (1,760 yards, or 1,609 Meters)
https://www.youtube.com/watch?v=55hBG21su7w

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CZ75 SP-01 Shadow 9mm, Browning Hi-Power 9mm, SIG Sauer Mosquito Sport .22LR, Ram-Line Syn-Tech Exactor .22LR, TAURUS 66, .357 Magnum, 4", Swiss Karabiner Model 1931 (2 pcs), 7.5x55 Swiss (GP11)


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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

Marksman

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Location: Baden, Switzerland
After bluing
Image
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CZ75 SP-01 Shadow 9mm, Browning Hi-Power 9mm, SIG Sauer Mosquito Sport .22LR, Ram-Line Syn-Tech Exactor .22LR, TAURUS 66, .357 Magnum, 4", Swiss Karabiner Model 1931 (2 pcs), 7.5x55 Swiss (GP11)


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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

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Good work. Did you do it yourself? Please share details. Thanks

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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

Marksman

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Location: Baden, Switzerland
Bluing is relative easy to DIY...
First you have to grind the parts until satisfied.
I use the sandpaper 800 - 1200
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then the parts have to be degreased with acetone
(no picture)

then soak the parts with bluing fluid, i use this one
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then rinse the parts under water and wait 12 hours, dry them with kitchen paper and coat with weapon oil...

and then
Image

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CZ75 SP-01 Shadow 9mm, Browning Hi-Power 9mm, SIG Sauer Mosquito Sport .22LR, Ram-Line Syn-Tech Exactor .22LR, TAURUS 66, .357 Magnum, 4", Swiss Karabiner Model 1931 (2 pcs), 7.5x55 Swiss (GP11)


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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

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Thanks. Looks similar to this viewtopic.php?f=49&t=892

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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

Marksman

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Yes, but LAGS works with guns for many years... I try to lern from him... and from many other professionals...
:greetings-waveyellow:

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CZ75 SP-01 Shadow 9mm, Browning Hi-Power 9mm, SIG Sauer Mosquito Sport .22LR, Ram-Line Syn-Tech Exactor .22LR, TAURUS 66, .357 Magnum, 4", Swiss Karabiner Model 1931 (2 pcs), 7.5x55 Swiss (GP11)


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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

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Thats a nice rifle. People apparently have been using it for long range. Congratulations.

Let us know when you do find a long range to try it out.

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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

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An all time classic....... congrats. :) This piece looks to be in a very nice condition and K31 is traditionally known to be a very accurate and well made rifle. what is the barrel condition BTW? Is the ammo easily available.
regards

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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

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We have all learned from LAGS :D

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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

Marksman

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KBW wrote:
An all time classic....... congrats. :) This piece looks to be in a very nice condition and K31 is traditionally known to be a very accurate and well made rifle. what is the barrel condition BTW? Is the ammo easily available.
regards

Thanks!
Barrel, imho, is in very good condition... but not cleaned yet... i still waiting for my cleaning set I ordered this monday...
something like this https://www.youtube.com/watch?v=X40FANRHeA0
I ordered also one bore snake 7.62 at aliexpress.com

the barrel diameter is 7.51mm as my dealer said...

what I read about K31 is something about this: "a new K31 bore should be 7.51 mm. 7.56 mm is maximum"

ammo is no problem... at the range one piece (surplus)costs CHF 0.40
here: https://www.gunfactory.ch/index.htm
1 pack 50pcs GP11 (original surplus Swiss Army from 2002) costs CHF 49.00
there are also Prvi Partisan the same caliber and 1 pack 20pcs costs CHF 23

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CZ75 SP-01 Shadow 9mm, Browning Hi-Power 9mm, SIG Sauer Mosquito Sport .22LR, Ram-Line Syn-Tech Exactor .22LR, TAURUS 66, .357 Magnum, 4", Swiss Karabiner Model 1931 (2 pcs), 7.5x55 Swiss (GP11)


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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

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Any success in finding a 300m range yet? :)

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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

Marksman

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No.... not yet...

but maybe I'll go with my son to Brünig Indoor
Here you can see some shooting with K31 there...
http://m.youtube.com/watch?v=1QzDO5wnZ1k

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CZ75 SP-01 Shadow 9mm, Browning Hi-Power 9mm, SIG Sauer Mosquito Sport .22LR, Ram-Line Syn-Tech Exactor .22LR, TAURUS 66, .357 Magnum, 4", Swiss Karabiner Model 1931 (2 pcs), 7.5x55 Swiss (GP11)


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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

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@Swissman
An absolute classic rifle, in excellent condition - congratulations on this addition bro.

You mentioned that a new K31 barrel should be 7.51mm, and maximum 7.56mm, does this mean that the diameter tends to increase with time or are you referring to batches of K31 and difference in manufacturing? If its the former then I have another question, does the rifling in the barrel not deteriorate if the diameter tends to increase over time? And if this does happen, can this rifling be restored in anyway?

Cheers...

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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

Marksman

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I dont know what does it mean.... some people say that were the tolerance in the production of military weapons in the past... but this carbines were produced between 1931-1958....
It is possible that the many shoots were made and this can be the reason....
Maybe LAGS can explain this phenomen...
K31 are relatively cheap in Switzerland. One in good codition like mine costs CHF 180 and less... new barrel costs CHF 900...

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CZ75 SP-01 Shadow 9mm, Browning Hi-Power 9mm, SIG Sauer Mosquito Sport .22LR, Ram-Line Syn-Tech Exactor .22LR, TAURUS 66, .357 Magnum, 4", Swiss Karabiner Model 1931 (2 pcs), 7.5x55 Swiss (GP11)


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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

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Over to you LAGS? :)

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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

Marksman

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I purchased a bayonet mod. 1918 to my K31
Here some pictures:

http://postimg.org/gallery/2clvtk2t6/

Image

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CZ75 SP-01 Shadow 9mm, Browning Hi-Power 9mm, SIG Sauer Mosquito Sport .22LR, Ram-Line Syn-Tech Exactor .22LR, TAURUS 66, .357 Magnum, 4", Swiss Karabiner Model 1931 (2 pcs), 7.5x55 Swiss (GP11)


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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

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Nice :) when are you planning to install / mount it?

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Bolt actions speak louder than words

Sometimes adding 175 grains of boat-tailed diplomacy speeds up Peace Talks


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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

Marksman

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I did it already... it needs 1 second... first time maybe 3...

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CZ75 SP-01 Shadow 9mm, Browning Hi-Power 9mm, SIG Sauer Mosquito Sport .22LR, Ram-Line Syn-Tech Exactor .22LR, TAURUS 66, .357 Magnum, 4", Swiss Karabiner Model 1931 (2 pcs), 7.5x55 Swiss (GP11)


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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

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Looks absolutely new. Did you polish it?
Congratulations.

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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

Marksman

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No, I spraeyd the leather "frog" with some Ballistol only... it was very hard....
Thanks

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CZ75 SP-01 Shadow 9mm, Browning Hi-Power 9mm, SIG Sauer Mosquito Sport .22LR, Ram-Line Syn-Tech Exactor .22LR, TAURUS 66, .357 Magnum, 4", Swiss Karabiner Model 1931 (2 pcs), 7.5x55 Swiss (GP11)


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 Post subject: Re: Swiss Karabiner Model 1931, Schmidt Rubin K31, Swiss K31

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good job done
are the arch angel stocks for it and mosan nagant available in switzerland


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