Who made the 50 caliber eagledesert?

Answer 1

That would be, Magnum Research.

It is chambered for the .50 Action Express.

(more info below)

The Magnum Research Desert Eagle was the first handgun chambered for the .50 AE. The only commercial handgun cartridges designed that exceed its ballistic performance are the .454 Casull, .460 S&W Magnum and the .500 S&W Magnum. The .50 Action Express was a totally new cartridge designed especially for the Desert Eagle pistol.

The rim diameter of the .50 AE is the same as the .44 Remington Magnum cartridge for which the pistol was already chambered, consequently only a barrel and magazine change is required to convert a .44 Desert Eagle to the larger, more powerful .50 AE.

The rounds chambered in this cartridge are generally around 300 grains and have a muzzle velocity of around 1,380 feet per second (with a 6-inch barrel). This gives the bullet 1,260-plus foot pounds of energy, placing the cartridge well above the .44 Magnum in terms of power.

The cartridge's combination of high velocity and mass results in very favorable penetration characteristics against hard cover.

Recoil of the .50 AE in the Desert Eagle pistol is substantial, although only marginally more severe than the .44 Magnum, as the auto mechanism smooths the recoil somewhat. The cartridge is quite loud as well, and a distinct flash is apparent, even in daylight. For these reasons, the .50 AE is not a cartridge for the beginner or novice. It is also quite expensive, at over $30 per box of 20 rounds.