45 ACP
45 ACP (Automatic Colt Pistol) Ammo is a popular handgun cartridge that is perfect to use in legendary 1911 pistols. These hard-hitting rounds are well-known around the world for both stopping power and reliability. The muzzle energy of 45 ACP ammo ranges between 300 and 500 ft. which is higher than most 9mm cartridges. Introduced in 1904 by John Moses Browning, this rimless straight-walled handgun standard cartridge operates at a low chamber pressure rating of 21,000 psi.
Ballistic Properties of 45 ACP Ammo:
Bullet Weight / Type
Velocity
Energy
185 grain / Bonded Defense
1,225 feet / second
835 Joules
185 grain / Jacketed Hollow Point
1,050 feet / second
614 Joules
200 grain / Jacketed Hollow Point +Pressurized
1,080 feet / second
702 Joules
230 grain / Federal Hydra-Shok
900 feet / second
561 Joules
230 grain / US Army Ball Full Metal Jacket
830 feet / second
477 Joules
45 ACP Ammo is available from 68 grains to 300 grains. Rounds under 100 grains and over 260 grains are specialty rounds. 186-grain and 230 grain are the perfect for reloaders and target shooters. A 230 grain round travels at about 830 ft/second when fired using a 1911 pistol.
45 ACP Ammo Specification:
Case type: straight, Rimless,
Bullet diameter: 11.5 mm (.452 in)
Neck diameter: 12.0 mm (.473 in)
Base diameter: 12.1 mm (.476 in)
Rim diameter: 12.2 mm (.480 in)
Rim thickness: 1.2 mm (.049 in)
Case length: 22.8 mm (.898 in)
Overall length: 32.4 mm (1.275 in)
Case capacity: 1.73 cm3 (26.7 gr H2O)
Rifling twist: 406 mm
Maximum pressure (CIP): 19,900 psi (137 MPa)
Maximum pressure (SAAMI): 21,000 psi (140 MPa)
About
The .50 GI Ammo is a pistol cartridge that was introduced into the markets in 2004 at the SHOT show. This bullet has rebated rim that has the same diameter as the .45 ACP Ammo. In terms of physical properties, the .50 GI Ammo is wider than the .45 ACP Ammo and has a slightly longer length. The .50 GI Ammo operates at pressure levels that can be compared with the .45 ACP Ammo. Even the recoil they produce is relatively the same. However, the .50 GI Ammo has developed a strong reputation for accuracy. Although, this accuracy could result from the expensive guncrafter pistols this cartridge is chambered in. The penetration of the .50 GI Ammo is very different from the .45 ACP Ammo since the .50 GI Ammo is one of the examples of the largest legally allowed caliber bullet. The overall length of the .50 GI Ammo is 31mm, while the bullet diameter measures 12.7mm. The 185-grain bullet is the lightest variant of the .50 GI Ammo that travels at a velocity of 1,200 feet per second and creates an energy level of 591 ft.lbf.
Manufacturer
The .50 GI Ammo was designed and developed by Alex Zimmermann in 2004 in the United States.
Uses
The .50 GI Ammo has been used for hunting hogs, bison, deer, and even wildebeests thanks to the excellent power and penetration of the cartridges. This cartridge has also been used for self-defense in some regions.