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H&R Model 155 'Shikari' '': Year of Manufacture: 1973-1981, These were single-shot break available in 12ga, 20ga shotgun barrels along with 44mag, 45-70 govt. rifle barrels with an under-barrel cleaning rod.
The .45-70 (11.6x53mmR), also known as the .45-70 Government, .45-70 Springfield, and .45-2 1 ⁄ 10" Sharps, is a .45 caliber rifle cartridge originally holding 70 grains of black powder that was developed at the U.S. Army's Springfield Armory for use in the Springfield Model 1873.
.45 Colt.45-70 Government.45-90 Sharps.45-70 Auto; 45 Raptor.450 Bushmaster.450 Black Powder Express.450/400 Black Powder Express.450/400 Nitro Express.500/450 Magnum Black Powder Express.450 Marlin.450 Nitro Express.500/450 No 1 Black Powder Express.450 No 2 Nitro Express.454 Casull.500/450 Nitro Express.450 Rigby.450 Dakota.450 Watts Magnum
These are a measure of the standardized length of the barrel versus the rifled bore of the barrel. In other words, a 12/45 is 12"×45= the length of the rifled bore of that gun in inches. This explains the differences in both penetration and long range performance of various naval rifles over the years.
According to the US Army Ordnance Department tests, the 45-70-405 was loaded to 19,000 psi, [4] while the 45-70-500 was loaded to 25,000 psi [2] The average accuracy of the Springfield Model 1873 was a circle with an average radius of 1.7 inches at 100 yards, corresponding to an ~3.4 MOA.
The Ruger #3 is a single-shot rifle produced by Sturm, Ruger & Co from 1973 to 1986. It is based on the Ruger #1, with some modifications made to reduce costs, such as a simpler one-piece breech lever. [3]
Name: Nation: Calibre (mm) Capacity: Muzzle velocity (m/s) Barrel length (mm) Overall length (mm) Unloaded weight (kg) Number produced Berthier rifle: France: 8×50mmR Lebel
The .475 is a wildcat cartridge made by cutting a .45-70 case to a length of 1.4 inches (36 mm), and necking it to accept a .475 bullet. The .475 Linebaugh is an immensely powerful cartridge, almost as powerful as the .454 Casull , the most powerful production revolver cartridge at the time (the .475 generates about 1,800 ft-lbs of energy.