The 45-70 round is well into its second century of existence with a history dating back to its introduction by the U. Army's Springfield Armory in 1873 as the Springfield Model 1873.
Interest was revived in 1972 when Marlin begin production of its "new" Model 1895 lever action gun chambered in .45-70 caliber; the round has seen a modest increase in use, especially in the U. The large diameter bullet punches a big hole in whatever it hits; however, slower velocities and longer distances may not always produce the necessary hydrostatic shock for clean, quick kills. ammo for use on dangerous game, its successful use may critically (read "life and death" important) depend on the skill of the shooter's cool-headedness in dangerous situation!The .22 Winchester Magnum Rimfire (5.6×27mm R), more commonly called .22 WMR, .22 Magnum, or simply .22 Mag, is a rimfire cartridge.Originally loaded with a bullet weight of 40 grains (2.6 g) delivering velocities in the 2,000 feet per second (610 m/s) range from a rifle barrel, .22 WMR has also been loaded with bullet weights of 50 grains (3.2 g) at 1,750 feet per second (530 m/s) and 30 grains (1.9 g) at 2,250 feet per second (690 m/s).More recently, a high-quality 30gr Vmax cartridge from Hornady has been released.This exceeds 2200fps in a rifle and has a reputation for much greater consistency and accuracy than was previously attributed to this calibre.
Accuracy around 1 MOA is achievable and this has led to this cartridge regaining ground previously lost to the excellent .17 HMR, especially as the 30gr bullet weight (nearly double that of the HMR's normal 17gr) gives it a reputation for hitting harder on larger varmints such as fox and coyote.By that time, Smith & Wesson and Ruger had revolvers for it, and Savage had come out with the Model 24 and since late 2012, the model 42, a more modern update than the 24, a .22/rifle.It was the only successful rimfire cartridge introduced in the 20th Century.The .22 WMR uses a larger case than the more popular .22 Long Rifle, both in diameter and length.The .22 WMR case is a lengthened version of the older .22 WRF.The .22 WMR's case is thicker than that of the .22 LR, allowing higher pressures.