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The 7mm RUM was created using the .404 Jeffery case [citation needed] which was also used to develop the .375 RUM.300 RUM, and .338 RUM [citation needed]. By necking down the .300 RUM to suit the .284 or 7mm projectile, Remington produced a non-belted case with a head diameter that is somewhat larger than the belt diameter of the original ...
The 7mm SAUM is a popular choice in f-class shooting, and has been used to take home multiple championships in this discipline. [2] [3] The 7mm Short Action Ultra Magnum cartridge (7mmx51) is a different cartridge than the similarly named 7mm Ultra Magnum (7mmx72). The two are not interchangeable.
The long case is very large and provides performance that exceeds existing commercial magnums, such as the .300 Winchester Magnum and .300 Weatherby Magnum. [2] The short design is the same idea as used in the Winchester Short Magnum cartridges. The shorter cartridges are known as Remington Short Action Ultra Magnum, RSAUM, RSUM, or SAUM.
The 7mm Winchester Short Magnum cartridge, a rebated rim bottlenecked centerfire short magnum introduced in 2001, is probably the closest ballistic twin of the 7mm Remington Magnum. The 7mm Winchester Short Magnum is considerably shorter and fatter and has a steeper shoulder angle and a shorter neck (6.17 mm) than the 7mm Remington Magnum. This ...
7 mm Remington cartridges are all rifle cartridges with bullets of 7 millimetres (0.28 in) diameter developed and sold by Remington.. These cartridges include: .280 Remington (7mm Express Remington)
7mm-RPC (wildcat) 7mm SAUM neck location 30° shoulder .308 Brass, "7mm Rum Punch Colonial". Wild Monkey; 7mm-08 Remington; 7mm Winchester Short Magnum; 7mm Remington Short Action Ultra Magnum.308 Winchester – considered interchangeable with 7.62×51mm NATO according to SAAMI. 7.62x51 NATO - Original cartridge.300 Winchester Short Magnum.300 ...
An overview of 7mm caliber cartridges, their history, and uses in firearms.
The 7mm Shooting Times Westerner, sometimes referred to as the 7mm STW, began as a wildcat rifle cartridge developed by Layne Simpson, Field Editor of Shooting Times, in 1979. [3] It is an 8mm Remington Magnum case that has been "necked down" (narrowing the case opening) by 1 mm to accept 7 mm (.284 in) bullets.