Please Note, on the picture on the right: Left if 7mm STW vs. Right is 8mm Remington Magnum.
One Cartridge, not a box, the picture of the box is for reference only!
For more versions of this caliber please see below in related items.
For more information, please see below.
Please Note, on the above picture on the right: Left if 7mm STW vs. Right is 8mm Remington Magnum.
One Cartridge, not a Box! : 7mm STW (Shooting Time Western) by Winchester (Olin Corp.), factory load using (then) new Winchester brass cases with “ WINCHESTER 7mm STW” Head-Stamp” and loaded with a Power-Point, JSP (Jacketed Soft Point) projectile.
History of the 7mm STW cartridge:
The 7mm STW for Shooting Time Western was developed as a Wild Cat cartridge by Layne Simpson in 1979 created by necking down the 8mm Remington Magnum to except 7mm projectiles.
Later Art Alphin of the A-Square Company (now closed) began the process of registering the cartridge with SAAMI, however, in October of 1996 Remington Arms Company announced it would offer the caliber and rifle in early 1997.
The early ratings from Remington for the caliber was 62,000 Pounds per Square inch in the chamber to produce a velocity of 3,325 feet per second for a 140 grain projectile.
