please help on identification

[timex180]

Hi

I need some help figuring out what I have here, after a lot of searching around the internet i still haven't found a true answer

It could be
a swiss mauser,
a K31,
a 1911
or SCHMIDT-RUBIN made

its been re chambered to .308 win (i think)

any help is good help

 

[Nabs]

You have an ex Swiss straight pull that appears to have been re-chambered in 308 Winchester. The original caliber would have been 7.5x55mm.

She was once a Schmidt-Rubin K11 carbine that would have looked like this in her early days:

[Borrowed from Google images]

 

[cantom]

there was a member on here who had a Schmidt Rubin blow up, very alarming photos.

I'd want to research whether the action is strong enough for 7.62.

Hmmm...maybe?

http://theswissriflesdotcommessageboard.yuku.com/topic/7932

http://www.canadiangunnutz.com/forum/showthread.php?t=282867

 

[sillymike]

Other than extraction troubles (case head on the 308 is smaller than the 7.5x55)... guys seem to be happy with them.

 

[green]

It was a 96/11 rifle based on the added pistol grip.

 

[tiriaq]

Had one of these at one time. The barrel was the original. It had not been set back. The 7.5 chamber is longer and larger in diameter than the .308 chamber. The only explanation for how the conversion was done is the use of a chamber sleeve.

 

[smellie]

I have one in .30-30 but it is on an 1889/96 action, built 1897 with the Bohler steel barrel (that's what the B-based monogram stands for: very good steel).

In the case of my own .30-30 and several others I have encountered, the conversion was done by removing the barrel, inserting a chamber sleeve and then screwing the barrel up tight again. A lip on the bottom of the sleeve was pinched between the back end of the barrel and the receiver, holding everything in place.

The original '89 action is stiff enough for the .30-30 but I would not want to shoot it with a .308W: there is a difference of something like 17,000 psi or so.

Still, successful conversions have been done with the FORWARD-LOCKING variants of the Schmitt-Rubin.

I prefer my Schmitts in their original chambering. Brass was hard to get for many years but now is being imported by a site sponsor in Montreal..... same one I keep mentioning (Trade-Ex) and, no, I don't work for Anthony, although I DO appreciate the service.
.

 

[browningautorifle]

I'm with Smellie. The most of the conversions were in 30-30. I think you're going way over pressure with 308. You won't know until it comes apart. There's no warning signs.

 

[englishman_ca]

A term I like that was used by an old armourer was 'Traumatic complete instantaneous dissassembly'.

 

[smellie]

I would think that a .308 conversion should be inspected to make certain that the locking-lugs are indeed at the FRONT of the locking-sleeve, and then proceed only if they are.

Keeping handloads relatively mild will help a great deal.

TEXT BOOK OF SMALL ARMS - 1909, gives Service pressure for these rifles of 17.1 Imperial Long Tons per square inch. That is 38,304 pounds. Standard operating pressures of the .308 W run as high as 52,000 pounds with some factory and military loads...... and only God Himself knows what some handloaders have built it up to. Keep pressures to spec for the RIFLE and you will have a sweet-shooting deer rifle which is more accurate than you might think. Those 3-groove Bohler barrels can really shoot, although you might not think it on first inspection. Just remember, the deer doesn't know.... and doesn't care.... if the bullet left the muzzle ahead of 38000 or 52000 pounds of gas pressure; all the deer cares about is that slug that hit it in the RIGHT PLACE.

Hope this helps.
.