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The .375 Ruger cartridge case was used by Hornady as the basis for new long-range cartridges, since it had the capability to operate with high chamber pressures (65,000 psi (448.16 MPa) P max piezo pressure according to the SAAMI), which combined with a neck and barrel throat optimized for loading relatively long and heavy very-low-drag bullets ...
SAAMI compliant .300 Remington Ultra Magnum cartridge schematic: All dimensions in inches [millimeters]. SAAMI recommends that the barrel have a 6 groove contour with a twist rate of one revolution in 10 in (250 mm). The barrel is to have a groove width of .115 in (2.9 mm). Bore is given as .300 in (7.6 mm) and a groove is .308 in (7.8 mm).
The exact capacity varies by manufacturer, purpose, or other factors. Standard drums have inside dimensions of 572 millimetres (22.5 in) diameter and 851 millimetres (33.5 in) height. These dimensions yield a volume of about 218.7 litres (57.8 US gal; 48.1 imp gal), but they are commonly filled to about 200 litres.
The .25-06 Remington was a wildcat cartridge for nearly half a century before being standardized by Remington in 1969.. Its design was based on the .30-06 Springfield cartridge necked-down (case opening made narrower) to .257 caliber keeping a similar cartridge length of its parent case, thus being chambered in standard-length actions.
Test barrel length: 24 in (610 mm) 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.
Maximum range of 45 km (28 mi) from a 39-calibre barrel and 60 km (37 mi) from a 52-calibre barrel, it is expected to achieve a maximum range of 70 km (43 mi) from the latter. [16] South Korea: K305 DPICM 1980s-current A dual-purpose improved conventional munition with a maximum range of 17.4 km (10.8 mi) when fired from the KH179. [17]
The .600 Nitro Express is a slightly tapered walled, rimmed, centerfire rifle cartridge designed for use in single-shot and double rifles. [4]The cartridge fires a .620 in (15.7 mm) diameter, 900 gr (58 g) projectile with three powder loadings: the standard being 100 gr (6.5 g) of cordite at a muzzle velocity of 1,850 ft/s (560 m/s); a 110 gr (7.1 g) loading which generates a muzzle velocity ...
Test barrel length: 26 Source(s): Weatherby [ 1 ] The .300 Weatherby Magnum is a .30 caliber rifle cartridge created by Roy Weatherby in 1944 and produced by Weatherby .