doublegunshop.com - home Forums General Discussion German & Austrian Sporting Guns @ doublegunshop.com Sempert & Krieghoff Drilling Questions

Schrader's drillings employed a short rifle barrel under long shotgun barrels to save weight, while Krieghoff pioneered the use of short shotgun barrels too, similar to the contemporary ideas of Britain's Robert Churchill. All three barrels of the Krieghoff Waldsch�tz were only 22" long as standard configuration. There even was a special order, full stocked Krieghoff "Steingass" drilling with 20" barrels. It was named after a forester who first ordered such a thing.
Schrader's safety lock did not use coil springs, but long V-springs. It is essentially a spring-cocker, similar to the Beesley/Purdey sidelock in function of the spring. Schrader had most of the guns made to his design by the former Dreyse, then Rheinmetall factory in Soemmerda.

Both "Krupp Laufstahl" and "Roechling Elektro" were standard barrel steels, used interchangeably in production. "Boehler Antinit" was an expensive, highly alloyed stainless barrel steel, used only on special order at a premium price. Antinit barrels are easily spotted today: they more often than not appear nearly white. Stainless steel is hard to rust blue of course, and the resulting "black" quickly wears off.

Here is a low quality photo of such a Sempert-Krieghoff "Steingass" drilling in 16/8x57I, mounted with the original Zeiss Zielvier scope.

Indeed Robert Schrader Jagdwaffen did in fact use leaf springs in patent 180584 from 1906 and an image is found here:

http://www.shotgunworld.com/bbs/viewtopic.php?f=2&t=217327

I'll have to do some digging but if I am not mistaken his previous designs were centered around coil springs and the patents will tell the tale. DRP 137824 for the Schildzapfenverschluss of his may have been we he made the transition from coil to leaf. I think it was loosely based on U.S. of A. Patent 394,691 of 1888 by Elmore Adelbert Harris's hingpin design: http://www.google.com/patents?id=Z_5CAAA...p;q&f=false or some similar patent by Elmore Adelbert Harris.

Kind Regards,

Raimey
rse

Here are a few more pages from the 1930 catalog with other drillings.

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Interesting Sempert & Krieghoff sidelock drilling for sale at Cabelas:



I'm really fond/a fan of the manner in which the adornment hides the sideframe reinforcement.








I wonder if the Schwertanker touchmark on the water table notes that Heinrich Krieghoff filed the frame himself?? Also I haven't conjured up in my mind what that additional filed slot in the left side of the well might be.


Kind Regards,

Raimey
rse