Search results
Results from the WOW.Com Content Network
The .270 Winchester cartridge is equipped with a 130-grain bullet traveling at approximately 3,060 feet per second (fps). When sighted in to intersect 3 inches above the line of sight at 100 yards (about 90 meters), it maintains a trajectory that rises no more than 3.5 inches and aligns with the line of sight around 270 yards.
This new .270 cartridge was the third commercial .270 ever produced, and the first one in 60 years. [1] The 270 WSM is an improvement over the older 270 Winchester providing higher velocity with bullets of the same weight, and thus a flatter trajectory and more energy. Velocities tend to be about 250 ft/s (76 m/s) faster, in a cartridge that is ...
All of the WSM cartridges are inspired on the .404 Jeffery non-belted magnum cartridge which is shortened to fit a short rifle action (such as a .308 Winchester). [1] It was developed by Rick Jamison in 1997-1998 as proven in a 2005 lawsuit Jamison vs. Olin Corporation-Winchester division. [2] Jamison was given 7 patents on the cartridge design.
The .270 Weatherby Magnum was the first belted magnum based on the .300 H&H Magnum to be developed by Roy Weatherby in 1943. [2] The cartridge is short enough to function in standard-length long actions with a brass length of 2.549" or 64.74mm and an overall length of about 3.295".
In 1969 the 308 Win. was dropped from production, and by 1970 only the 243 Win, 270 Win, and 30-06 Sprg were offered. Again in 1971 chamberings were reduced to only the 243 Win and 30-06 Sprg. In 1972 the rifle was redesigned to incorporate the same design stock and a 2 position safety similar to that of the Model 70.
.17 Hornady Magnum Rimfire, commonly known as the .17 HMR, is a rimfire rifle cartridge developed by Hornady [3] in 2002. It was developed by necking down a .22 Winchester Magnum Rimfire case to take a .17 caliber (4.5mm) projectile. Commonly loaded with a 17 grain (1.1 g) projectile, it can deliver muzzle velocities in excess of 775 m/s (2,650 ...
.270 Winchester semi-automatic rifles (1 P) This page was last edited on 30 July 2018, at 16:54 (UTC). Text is available under the Creative Commons Attribution ...
The Winchester Model 1200 was initially produced with barrel lengths of 30 inches (760 mm) or 28 inches (710 mm) chambered for 2.75-inch (70 mm) cartridges in either 12, 16, or 20-gauge. The magazine, with a capacity of four rounds was provided with a wooden insert to limit magazine capacity to two rounds in the magazine.