doublegunshop.com - home Forums General Discussion DoubleGun BBS @ doublegunshop.com Winchester Model 21 Steel

Looking for information on what type of steel was used to make Winchester Model 21. Thanks in advance.

I quote "Instead of following the usual practice of utilizing case-hardened material for the frame, Winchester employed chrome molydenum alloy steel, the famous Winchester Proof Steel, having a tensile strength of 90 tons per square inch" Ned Schwing, WINCHESTER�S FINEST THE MODEL 21, P. 22.
"When Winchester decided to built a double barrel side by side shotgun it wanted a set of barrels that were strong and accurate. The result was barrels forged in the Winchester plant from specially heat treated alloy steel having a tensile strength of 115,000 to 120,000 pounds per square inch and an elastic limit of aproximately 105,000 pounds per square inch. This was more than twice the strength of the usual barrel sreel."..... "Model 21 barrels began as solid core blanks of special chrome molybdenum alloy developed by Winchester metallurgists working with the steel company�s metallurgists to devise a formula strictly for Winchester barrels" Ibid., p. 57.

Schwing drescribes the process but does not goes on technical nomenclature.

Believe I read in some original Wincheter drawings that the frame was made of SAE 4140

Thanks.

The fact that it survived 2000 consecutive proof loads makes me want one...Steve

Made with metals from the planet Krypton

Winchester borrowed their barrel-joining design from the mass-produced British gun of that era, the BSA.

Steve, there's an old 16 gauge in West Virginia with your name all over it!!

Probably due to the fact that Robert Owen, master british gunmaker of the 1020-1940 era, was part of the design team. R>G> Owen built several fine side-by-sides and also BA rifles for his friend Captain Paul A. Curtis!!!