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The American ammunition manufacturer Hornady got the 300 Precision Rifle Cartridge [15] SAAMI-standardized in 2018. [16] [17] In 2019 it got C.I.P.-standardized as the 300 PRC. [18] The .375 Ruger cartridge has functioned as the parent case for the .300 Precision Rifle Cartridge (300 PRC), [19] which is essentially a necked-down version of the ...
The .300 Winchester Magnum (also known as .300 Win Mag or .300 WM) (7.62×67mmB, 7.62x66BR) is a belted, bottlenecked magnum rifle cartridge that was introduced by the Winchester Repeating Arms Company in 1963. The .300 Winchester Magnum is a magnum cartridge designed to fit in a standard rifle action.
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.
However, as the .30 Super is rated for a lower pressure, the .300 H&H Magnum cartridge should not be fired in a .30 Super. However, the .30 Super can be discharged in a .300 H&H Magnum rifle. As most significant difference between the cartridges was that the .30 Super was loaded to a far lower pressure than the .300 H&H Magnum.
The .300 Ruger Compact Magnum uses a unique case designed by Hornady and Ruger based on the powerful .375 Ruger cartridge. The case is of a rimless design having the base and rim diameter of .532 in (13.5 mm) which is the same diameter of the belt on belted magnum cases based on the .300 H&H Magnum and .375 H&H Magnum. This allows the cartridge ...
Source(s): Reloading data at Accurate Powder .300 Remington Short Action Ultra Magnum (also known as 300 RSAUM, 300 RSUM or 300 Rem SAUM) is a .30 caliber short magnum cartridge that is a shortened version of the Remington 300 Ultra Mag, both of which derive from the .404 Jeffery case.
The .260 Remington, loaded with very low drag bullets such as the 138 gr (8.9 g) Lapua, 140 gr (9.1 g) Berger, or 142 gr (9.2 g) Sierra, can match the 1,000 yd (910 m) performance of the 190 gr (12 g) Sierra-loaded .300 Winchester Magnum, with better resistance to wind deflection and half the recoil. [12]
Remington ammunition for the .300 RUM is available in three Power Levels. Power Level I duplicates the .30-06 Springfield, Power Level II that of the .300 Winchester Magnum and Power Level III is the full power load. Remington offers the full power (Power Level III) .300 Remington Ultra Magnum ammunition in 150 gr (9.7 g) at 3,450 ft/s (1,050 m ...