The .376 Steyr (9.5x59mmRB) cartridge is a rebated rim rifle cartridge jointly developed by

Hornady Hornady Manufacturing Company is an American manufacturer of ammunition cartridges, components and handloading equipments, based in Grand Island, Nebraska. History Joyce W. Hornady began manufacturing bullets in the spring of 1949 with a .30 cal ...

and

Steyr Steyr (; ) is a statutory city (Austria), statutory city, located in the Austrian federal state of Upper Austria. It is the administrative capital, though not part of Steyr-Land District. Steyr is Austria's 12th most populated town and the 3rd lar ...

for use in the

Steyr Scout The Steyr Scout () is an Austrian bolt-action rifle manufactured by Steyr Mannlicher, and chambered primarily for 7.62 NATO ( .308 Winchester), although other caliber options in 5.56×45mm NATO ( .223 Remington), .243 Winchester, 6.5 Creedmoo ...

rifle. Introduced in 1999, it is based on the

9.3×64mm Brenneke The 9.3×64mm Brenneke (designated as the 9,3 x 64 Brenneke by the C.I.P.) is a rimless bottlenecked centerfire rifle cartridge designed in 1927 by German gunmaker Wilhelm Brenneke. It is suitable for hunting medium to large game animals in A ...

case, necked up to accept a diameter bullet. The case is also shortened by about to fit a standard length rifle action. It was developed as an evolution of

Jeff Cooper John Dean "Jeff" Cooper (May 10, 1920 – September 25, 2006) was a United States Marine Corps officer and firearms instructor. He is the creator of the " modern technique" of handgun shooting, and an expert on the use and history of small ...

's "Super Scout" medium rifle concept, which was in turn an extension of his original

scout rifle The scout rifle is a conceptual class of general-purpose rifles defined and promoted by Jeff Cooper in the early 1980s that bears similarities in the design and functionality of guide guns, mountain rifles, and other rifle archetypes, but with m ...

concept. Cooper used a version of Steyr's Scout rifle chambered in

.350 Remington Magnum The .350 Remington Magnum was introduced in 1965 by the Remington Arms Company for the Model 600 rifle. It was later offered in the Model 660, Model 673, and Model 700 rifles, as well as the XP-100. It was discontinued as a regular factory ...

to hunt large and dangerous game, originally calling it a "Super Scout". After taking a lion at close range with the weapon, he switched to calling that rifle his "Lion Scout". An additional motivation for development of the new cartridge was that authorities in certain areas of the world dictate a minimum rifle caliber, which may be used for hunting dangerous game, such as

cape buffalo The African buffalo (''Syncerus caffer)'' is a large sub-Saharan African bovine. The adult African buffalo's horns are its characteristic feature: they have fused bases, forming a continuous bone shield across the top of the head, referred to ...

and

lion The lion (''Panthera leo'') is a large Felidae, cat of the genus ''Panthera'', native to Sub-Saharan Africa and India. It has a muscular, broad-chested body (biology), body; a short, rounded head; round ears; and a dark, hairy tuft at the ...

. In general the minimum caliber needed is either .366 inch (9.3 mm) or .375 inch (9.5 mm), so that the majority of African countries will accept the newly designed cartridge, therefore it uses a .375 inch (9.5 mm) caliber. When Steyr initially discussed the new round with Cooper, they intended to call it the .375 Steyr. Cooper said they should instead call it a .376, to avoid confusion with the .375 H&H Magnum. Cooper subsequently referred to the Scout Rifle in .376 Steyr caliber as the "Dragoon" or "Dragoon Scout," this marking being on the one that Steyr sent him. This designation has been dropped, and is not on production units. With a higher felt

recoil Recoil (often called knockback, kickback or simply kick) is the rearward thrust generated when a gun is being discharged. In technical terms, the recoil is a result of conservation of momentum, for according to Newton's third law the force requ ...

, the .376 Steyr is the largest practical cartridge for use in such a short, lightweight weapon as the Scout.

Steyr Mannlicher Steyr Arms () is a firearms manufacturer based in Austria. Originally part of ''Steyr-Daimler-Puch'', it became independent when the conglomerate was broken up in 1989. Prior to 1 January 2019, the company was named ''Steyr Mannlicher GmbH Co. ...

has also produced a conventional-style rifle to use this cartridge, dubbed the "Pro Hunter."

References

* https://saami.org/wp-content/uploads/2023/11/ANSI-SAAMI-Z299.4-CFR-Approved-2015-12-14-Posting-Copy.pdf page135
C.I.P. TDCC (Tables of Dimensions of Cartridges and Chambers) .376 Steyr
*Ching, Eric S. H.

The Mannlicher Collector #62, 2000 *Cooper, Jeff

Jeff Cooper's Commentaries, Vol. 13, No. 1, January 2005

External links

* ttps://prfdesigner.com Website Developer & Designerbr>Chuck Hawks on .376 Steyr (non-subscription version)
{{DEFAULTSORT:376 Steyr Pistol and rifle cartridges Rebated rim cartridges

See also

References

External links