| .44 AMP | |
| Origin: | United States |
| Type: | Pistol |
| Design Date: | 1971 |
| Manufacturer: | Auto Mag Corporation |
| Production Date: | 1971–1982 2017–present |
| Is Si Specs: | no |
| Parent: | .30-06 Springfield[1] |
| Case Type: | Rimless, straight |
| Bullet: | .429 |
| Neck: | .457 |
| Base: | .470 |
| Rim Dia: | .470 |
| Case Length: | 1.298 |
| Length: | 1.6 |
| Case Capacity: | 28.5 |
| Primer: | Large pistol |
The .44 Auto Magnum Pistol (AMP) is a large-caliber, semi-automatic pistol cartridge developed in 1971 by Harry Sanford.[2] The primary use is in the Auto Mag Pistol.[3] The cartridge was also employed in the Wildey automatic pistol, including a few other custom pistols.[4] While factory loads are manufactured, cases can be made by cutting down and reaming out .308 Winchester or .30-06 Springfield brass,[5] with ballistic performance similar to the .44 Magnum revolver cartridge.[3]
The .44 AMP was discontinued in 1982 after eleven years before being brought back sometime later in 2017, continuing current production to the present time.