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The Schmidt-Rubin Training Carbine in .22 LR Rimfire

of Switzerland


This model appears to be a modification of either a 1911 carbine or of a shortened 1911 long rifle.

The rear tangent sight has been moved back in front of the barrel reinforce,

and the resultant carbine's configuration offers a passable representation of the Model 1931 - or "K-31"- carbine.

Use this link for more details, and images of the 1889 and 1911 models

The next two images can be rotated and zoomed, either as initially loaded or full-screen for higher definition.

 

DATA TABLE - ALL MEASUREMENTS AS VIEWED
FIREARM
IMPERIAL
METRIC
Designation or Type :
Carbine
-
Action Type :
Straight-pull bolt
-
Nomenclature :
action marked "P61"
with serial no. 9418
Calibre :
.22inch Long Rifle
5.6mm LR
Weight :
8 lbs. 11 ozs.
3.49 kgs
Length - Overall :
43½ inches
110.5 cms
Length - Barrel :
23¼ inches
59 cms
Pull :
14 inches
35.5 cms
Furniture :
Walnut
-

Rifling - No. of Grooves :

6
-
Rifling - Twist & Direction:
1 turn in 15 inches - RH
1: 39.7 cms
Rifling - Groove width :
0.075 inches
1.90 mm
Rifling - Land width :
0.041 inches
1.05 mm

Rifling - Groove depth at muzzle :

0.003 inches
0.08 mm
Sight - Fore :
square blade
-
Sight - Rear :
U-notch tangent leaf
-
Sight - Radius :
21 inches
53.5 cms

..........

Above: Full-bore bolt on Left and Small-bore bolt on Right

CLICK THE IMAGE BELOW TO VIEW A VIDEO PASS THROUGH THIS RIFLES BORE

The rifling of the Schmidt-Rubin is typically of Swiss precision manufacture.

The condition remains fine, and the polish in the bore is good enough to reflect an object in the photography studio in front of the muzzle.

The bore is not as tight as other examples shown on this website, evidenced by the still clearly visible lubricant indentations around the periphery of the bullet used as a slug.

These indents are considerably more compressed and less apparent in many other rifles.

The slug's smoothness literally reflects the excellent finish of the bore.

< land impression >.......

Regrettably, the groove and land width measurements were taken before this slug was imaged;

The extraneous marks in the land groove (at the centre of the image),

and on the edge of the bore's groove impression, have been left by the vernier calipers.

The comparatively loose fit of the slug is evidenced by the fact that the impression left in the slug

by the barrel's rifling land has not even eliminated the lubricant indentations, as would more usually be the case.

The disassembled magazine showing loading platform and spring

 

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