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 .450 SMC Ammo was launched in the late 2000s and was similar to the .45 Super. The main difference was that this cartridge used a small rifle primer which allowed more brass into the cartridge to provide it with more strength. Despite getting discontinued and fading away, the .450 SMC Ammo is now commercially available in the markets. The .450 SMC Ammo uses a small magnum primer rather than the primer of a standard pistol cartridge which provides plenty of ignition power. Small primer means more brass at the base of the bullet, meaning more strength to the case. The recoil in the lighter variants of the .450 SMC Ammo is pretty similar to the .45 ACP Ammo, but when it comes to heavier rounds, the .450 SMC Ammo provides far more controllable and manageable recoils. People have been praising the manufacturers who brought back the .450 SMC Ammo into the markets because of its performance and reliability to shooters for different purposes.
Manufacturer
The .450 SMC Ammo was originally produced by Triton in the late 2000s but was discontinued. Mike McNett, the founder of Doubletap Ammunition, saw potential in this cartridge and decided to bring it back and better than before.
Uses
The lighter rounds are being used widely for self-defense because they can be shot fast and accurately. The heavier rounds can take down medium-sized game and a few large species in decent range.