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The original .50 AE bore diameter was .500 in, with conventional rifling, but the switch to polygonal rifling on production Desert Eagles allowed the gauge plug to drop through, rendering the gun a destructive device under Bureau of Alcohol, Tobacco, Firearms and Explosives (BATFE) regulations.
Thus, a conversion to fire other cartridges can be quickly accomplished. The rim diameter of the .50 AE (Action Express) is the same as the .44 Remington Magnum cartridge, consequently, only a barrel and magazine change is required to convert a .44 Desert Eagle to the larger, more powerful, .50 AE round.
The 450B uses .452" diameter bullets, most often seen in the abundant 45-caliber pistol styles. The 300gr version is rated at 1900fps at the muzzle, and the 250gr at 2200fps. 458 SOCOM, Proprietary. The case head and rim dimensions exactly match the military 7.62x51 (also .308), but the case body is slightly wider and has more taper. 50 Beowulf ...
A .50 caliber handgun / Anti-materiel pistol is a handgun firing a bullet measuring approximately 0.5 inches (12.7 mm) in diameter intended with the task of penetration. Historically, many black powder pistols fired bullets with diameters well above a half inch. However, following the development of smokeless powder, the focus shifted to ...
Proprietary status. The .50 Beowulf is a proprietary caliber developed as a specialized cartridge. Alexander Arms and Delta Firearms oversees all aspects of the production of the system and related accessories. Their reluctance to divulge information has been a source of irritation to some writers. [3]
The cylinder bore diameter is given as .500 in (12.7 mm). SAAMI recommends a 6 groove barrel with each groove being 0.130 in (3.3 mm) wide. A barrel with a bore diameter of 0.4880 in (12.40 mm) and a groove diameter of 0.4983 in (12.66 mm) is also recommended. The recommended twist rate is 1 in 18.75 in (476 mm).
The initial prototype brass still bore the .50 AE head stamp and this has caused some confusion, as the SOCOM case is longer with a narrower rim. The .50 AE rim diameter was reduced from .514 inch to .473 inch for compatibility with other platforms, primarily bolt-action rifles.
The .440 Cor-Bon is a large-caliber handgun cartridge, first produced by Cor-Bon in 1998. Although it looks similar to a .357 SIG, this cartridge was designed after being necked down from an existing cartridge, the .50 AE to accept a .44- caliber (.429 in) (10.89 mm) bullet. This is fairly typical in the wildcat cartridge industry.