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The .243 Winchester Super Short Magnum or .243 WSSM is a rifle cartridge introduced in 2003. It uses a .300 WSM (Winchester Short Magnum) case shortened and necked down to accept a .243in/6mm diameter bullet, and is a high velocity round based on ballistics design philosophies that are intended to produce a high level of efficiency. [2]
In December 1955, Guns Magazine writer, H. Jay Erfurth in an article titled Two Varmint-Big Game Rifles discussing the .244 Remington and .243 Winchester wrote "the Winchester bullet of 100 grains is the better one for deer and medium game than the 90-grain Remington pointed soft-point, though the differences seem mostly splitting hairs." He ...
0.243 [10] 0.405 [5] 56.72mm Same cartridge as .244 Remington and interchangeable. Rifles marked .244 Remington may not stabilize heaviest 6mm Remington bullets. [3] 6mm BR Norma: 1996 [14] Sweden 3 [15] [16] R 6x39.6mm 2789 [15] 0.243 0.517 [15] 39.6mm Norma's redesigned of the Remington 6mm BR in order to utilize VLD bullets. 6mm XC: 2000 US ...
The .243 produces a velocity of 3,200 feet (980 m) per second from factory-loaded expanding monolithic copper projectiles weighing 85 grains (5.5 g) fired from a 24-inch (610 mm) barrel. [28] Other variations of commercially loaded .243 ammunition are available with bullet weights ranging from 55 grains (3.6 g) up to 115 grains (6.8 g).
The Remington XP-100 bolt-action pistol and its aptly named .221 Fireball cartridge, introduced in 1963, were developed for varmint hunting; the full name is the "Model XP-100 Varmint Special". For varmint and pest control in urban areas, air guns make suitable choices. While the limited power of an air rifle (generally far less than a .22 Long ...
There are basic advantages inherent to the Short Magnum concept. The idea is that the short, fat powder column gives a more uniform load density and ignition rate and therefore a more consistent burn. This in turn should translate into improved accuracy and potentially moderate recoil due to more efficient use of propellants. [citation needed]
Though the .25-20 has been used on deer and even claimed the James Jordan Buck, a whitetail deer of long standing record in 1914, [4] it is now rarely used on large-bodied game due to its feeble ballistics and light bullet construction, which make humane one-shot kills unlikely. Though the higher velocity loads would be destructive for small ...
Loaded with lighter bullets, the .260 Remington can be used as an effective varmint or a small predator hunting cartridge for use against such species as marmots, woodchucks, bobcats and coyotes. Bullets chosen for these species should be designed to open rapidly unless harvesting of the pelt is the objective.