The 7mm Shooting Times Westerner, sometimes referred to as the 7mm STW began as a
wildcat rifle cartridge developed by Layne Simpson in 1979.
[The 7mm STW (Shooting Times Westerner)]
by Chuck Hawks It is an
8mm Remington Magnum
The 8mm Remington Magnum belted rifle cartridge was introduced by Remington Arms Company in 1978 as a new chambering for the model 700 BDL rifle. The 8mm Remington Magnum's parent case is the .375 H&H Magnum. It is a very long and powerful ca ...
case that has been "necked down" (narrowing the case opening) by 1 mm to accept
7 mm (.284 in) bullets. This cartridge is named after the magazine ''Shooting Times'' where Layne Simpson is a regular contributor.
Background
The 7mm STW graduated to commercial status when it was officially recognized by
SAAMI
The Sporting Arms and Ammunition Manufacturers' Institute (SAAMI, pronounced "Sammy") is an association of American manufacturers of firearms, ammunition, and components. SAAMI is an accredited standards developer that publishes several Americ ...
in 1996.
[The 7mm STW (Shooting Times Westerner)]
by Chuck Hawks (subscription only)
Remington Arms Company was one of the first large ammunition companies to produce this cartridge in 1997, with others like
Federal Cartridge Company,
A-Square, and
Speer
Speer is a surname.
: Ashkenazim (): a spelling variation of ''Speyer'', a name indicative of origin from the German city of Speyer
: Middle High German and Middle Dutch (): ''sper'', meaning "spear"
: Scottish and northern Irish : a spelling va ...
also carrying it. Many
US riflemakers now offer a selection of production models chambered for the 7mm STW, which has established a reputation as a fine long-range elk and large game rifle.
Layne Simpson may have popularized the cartridge when he named it the 7mm STW, but he is not the first to make or use such a cartridge. Jon Herold, a gunsmith from Waynesboro PA, used it in 1000 yd matches at Williamsport, PA at least 10 years before.
See also
*
7mm caliber for other cartridges of this caliber.
*
Table of handgun and rifle cartridges
References
''Rifle Shooter Magazine'' article on 7mm cartridges
{{DEFAULTSORT:7 Mm Stw
7mm STW
Magnum rifle cartridges
Wildcat cartridges