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Winchester claims a muzzle velocity (MV) of 3,225 ft/s with a 140 grain bullet for their 7mm WSM cartridge; the claimed muzzle energy (ME) is 3,233 ft. lbs. With a 160 grain bullet the Winchester figures are 2990 ft/s and 3176 ft. lbs. at the muzzle. The lighter, shorter 7mm bullets are preferred in these short case magnums. [2]
The first Lazzeroni short magnum, the 7.82 Lazzeroni Patriot, [3] was designed to operate in a short-action rifle, instead of requiring a long action. The U.S. Repeating Arms Company was the first major manufacturer to commercialize Lazzeroni's concept, followed shortly thereafter by Remington with their "Short Action Ultra Mag" line.
A magnum cartridge is a firearm cartridge with a larger case size than, or derived from, a similar cartridge of the same projectile caliber and case shoulder shape. [ clarification needed ] The term derives from the .357 Magnum , the original revolver cartridge with this designation.
.243 Winchester, 6mm Remington, 6mm BR, .260 Remington, 6.5mm Creedmoor, 6.5×55mm, 6.5x47, 6.5 TCU, .270 Winchester, 7mm-08 Remington, 7mm BR Remington, 7mm TCU, 7x57mm, .30 TC, .308 Winchester, and .30-06 Springfield. The limiting factor is the balance between amount of recoil and the ability to retain enough energy to knock the rams over at ...
Olin Corporation-Winchester Division, Case Nos. 03-1036-KI (lead case), 04-31-KI, 04-76-KI (D. Or. Nov. 2, 2005). Inventor John R. Jameson had developed and patented several designs for short magnum rifle cartridges. [citation needed] Jameson approached Olin/Winchester ammunition with his invention. The court found that Olin/Winchester and ...
List of Winchester Center Fire rifle cartridges.More commonly known as WCF, it is a family of cartridges designed by Winchester Repeating Arms Company. [1] There are many other Winchester cartridges that do not carry the WCF moniker, such as the .300 WSM. .270 Winchester, and .300 Winchester Magnum
.300 Winchester Magnum (1963): .308 in (7.8 mm) bullet; With the exception of the .264 Win Mag, all of these cartridges are still widely used and among the most popular big game cartridges around the world. The .458 Win Mag has become the #1 cartridge for dangerous game in Africa, as well as a very popular round with Alaskan/Canadian bear guides
Improved cartridge extraction reliability is desirable while hunting dangerous game, in particular when a fast follow-up shot is required. The 7mm Remington Magnum is based on the commercial .264 Winchester Magnum, .338 Winchester Magnum, and .458 Winchester Magnum, which were based on the same belted .300 H&H Magnum and .375 H&H Magnum cases ...