.44 AMP
The .44 Auto Magnum Pistol (AMP) is a large caliber, automatic pistol cartridge developed in 1971 by Harry Sanford.[3] The primary use is in the Auto Mag Pistol.[4] The cartridge was also employed in the Wildey automatic pistol and some custom pistols.[5] While factory loads are manufactured, cases may be made from .308 Winchester brass.[6] The performance is similar to the .44 Magnum revolver cartridge.[4]
| .44 AMP | |
|---|---|
 A .44 AMP (left) next to a .44 Magnum cartridge (right) | |
| Type | Pistol |
| Place of origin | United States |
| Production history | |
| Designed | 1971 |
| Manufacturer | Auto Mag Corporation |
| Produced | 1971–1982, 2017–present |
| Specifications | |
| Parent case | .30-06[1] |
| Case type | Rimless |
| Bullet diameter | .429[2] |
| Neck diameter | 0.512"[2] |
| Rim diameter | .514[2] |
| Case length | 1.28"[2] |
| Overall length | 1.587"[2] |
| Case capacity | 28.5 gr[2] |
| Rifling twist | Six grooves with a right-hand twist |
| Primer type | Large pistol[2] |
References
- John J. Donnelly (2011). The Handloader's Manual of Cartridge Conversions. Skyhorse. ISBN 1616082380.
- George Nonte (October 1974). "feeding the .44 AUTO MAG" (PDF). Handloader Magazine.
- Chris Eger. "Dirty Harry & Mack Bolan's Big Thunder: The Auto Mag Pistol in .44 AMP".
- Long, Duncan (1995). Hand Cannons: The World's Most Powerful Handguns. Boulder, Colorado: Paladin Press. ISBN 0873648099.
- Wildey Guns - The Wildey Archived October 5, 2016, at the Wayback Machine, Retrieved January 16, 2016.
- ".44 Auto Mag Ammunition Information (Company Literature)" (PDF). Pasadena, California.
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