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The 7×61mm Sharpe & Hart Magnum belted cartridge (A.K.A. 7mm S&H Super [1]) was developed by Philip B. Sharpe and Richard (Dick) Hart in the 1950s. Some articles claim it was based on the .300 H&H Magnum case, [1] [2] while others claim it was based on the 7x61 MAS M1907 case.
Gates' .414 SuperMag. A super magnum is a longer and/or more powerful version of a "magnum" cartridge.Although the term "super magnum" typically refers to a handgun cartridge, created by lengthening an existing straight-case design, it can also refer to rifle and shotgun cartridges, such as the .17 Winchester Super Magnum and the 3 1 ⁄ 2" 12 Gauge Super Magnum.
The rimmed .375 H&H Flanged Magnum for double-guns and the .375 H&H Belted Rimless Magnum with a headspacing belt for magazine-fed rifles were released simultaneously in 1912. .375 Ruger: 2007 US 1 [4] R [5] 9.5×65.5mm 2840 [4] 4835 [4] 3.405 90.5 [10] 0.375 [10] 0.430 [5] 65.5mm Developed in collaboration between Ruger and Hornady. [citation ...
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.
Introduced by the Federal Cartridge company, now known as Federal Premium Ammunition, the .327 Federal Magnum was an attempt to improve on the .32 H&R Magnum introduced in 1984. Like the .32 H&R, the .327 Federal is a lengthened version of the original .32 S&W cartridge, which dates back to 1878.
The shortening of the case allowed for the more efficient use of the slow powder of the day, IMR 4350; [2] a powder which would not have provided any great advantage for such cartridges as the .257 Weatherby Magnum or the .270 Weatherby Magnum if such cartridges utilized the full length H&H case. Today, IMR 4350 is considered too fast a burning ...
The .327 has also been used in full-sized revolvers and Henry's Big Boy Steel carbine. The .327 Federal Magnum is actually a super magnum having replaced the .32 H&R Magnum as the pinnacle of power in this diameter revolver cartridge. [15]
Although not originally designed for handguns, several rifle and shotgun cartridges have also been chambered in a number of large handguns, primarily in revolvers like the Phelps Heritage revolver, Century Arms revolver, Thompson/Centre Contender break-open pistol, Magnum Research BFR, and the Pfeifer Zeliska revolvers.