The .44 Magnum is a large-bore, dual-use cartridge designed for revolvers; however it is also used in many rifles as well. It was developed in the mid-1950s by lengthening the .44 Special cartridge. Despite the ".44" designation, all guns chambered for .44 Magnum and its parent use bullets .429 inches (10.9 mm) in diameter. A .44 Magnum revolver or rifle will accept both .44 Magnum and .44 Special ammunition, but a weapon designed for .44 Special will only accept the Special, due to the longer overall length of a .44 Magnum cartridge.
Elmer Keith settled on the .44 Special cartridge as the basis for his experimentation, rather than the larger .45 Long Colt. At the time the selection of .44 caliber projectiles for handloaders was better, and the .44 Special case was smaller in diameter than the .45 Long Colt case--in revolvers of the same size, this meant the .44 caliber revolvers had thicker, and therefore stronger, cylinder walls than the .45. This allowed higher pressures to be used without risk of a burst cylinder.
Mr. Keith encouraged Smith & Wesson and Remington to produce a commercial version of this new high pressure loading, and revolvers chambered for it. While S&W produced the first prototype revolver chambered in .44 Magnum, the famous Model 29, Sturm, Ruger actually beat S&W to market by several months in 1956 with a .44 Magnum version of the single action Blackhawk revolver. The exact reason for this is lost in legend; one version says a Ruger employee found a cartridge cased marked ".44 Remington Magnum" and took it to Bill Ruger, while another says a Remington employee provided Ruger with early samples of the ammunition.
The .44 Magnum was an immediate success, and the direct descendents of the S&W Model 29 and the .44 Magnum Ruger Blackhawk are still in production, and have been joined by numerous other makes and models of .44 Magnum revolvers, and even a few semiautomatic pistols, such as the Desert Eagle. While modern steels and manufacturing techniques have allowed even stronger clyinders, leading to larger and more powerful cartidges such as the .454 Casull, and .480 Ruger, in revolvers the same size as a .44 Magnum, the .44 Magnum is still considered a top choice today. In 2006, to commemorate the 50th anniversary of the .44 Magnum, Ruger introduced a special 50th anniversary Blackhawk revolver, in the original .44 Magnum "Flattop" style.
From the start, the .44 Magnum handguns were designed to tolerate the high pressures this cartridge produces. Some past dual-use handgun/rifle cartridges, like the 44-40 Winchester, gave their manufacturers trouble and occasional lawsuits when people loaded the "High-Speed" versions designed for rifles into handguns.
This was one of the reasons why the .44 Magnum casing was lengthened so it would not chamber in .44 Special revolvers. Some high-quality .44 Special weapons could accept the high pressures of the new cartridge, but other older guns would be damaged or destroyed. The lengthened cartridge avoided this issue.
As a rifle cartridge the .44 Magnum is reasonably powerful yet compact and not bulky, and far better on deer and other big game than the .357 Magnum. However, the .357 is said by some to be more versatile as it covers small and medium game better and has less recoil.
This cartridge has a natural home in single action revolvers like the Ruger Super Blackhawk and some autoloading handguns like the Desert Eagle. The single-action designs tend to "rear up" when fired and tame the recoil a great deal, while the gas system of the autoloading weapons absorbs and buffers recoil significantly. Double action revolvers tend to transmit more recoil to the shooter's arm, causing it to be perceived as more harsh.
Still, many shooters like it as they can thus have a rifle and a handgun in the same cartridge, making logistics easier. It is popular in rifles within these limitations for big game. It will also work well for coyotes and animals in that class, though it is rather expensive for that purpose versus lesser cartridges.
Many handloaders will load lighter than factory loadings for other purposes and for target shooting.
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".44 Magnum".
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