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.45 Auto (.45 ACP) VS 45 Auto Rim

Head to Head Comparison

.45 Auto (.45 ACP)

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50%

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45 Auto Rim

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MSRP:

$23.39

Used Price:

$23.39

New Price:

$25.99

MSRP:

$0.00

Used Price:

$0.00

New Price:

$0.00

Gun Specifications

Specifications

.45 Auto (.45 ACP)

45 Auto Rim

Height

0.90

Average FPS

937

Average Grain

207

Average Energy

403

Recoil

0.93

Ballistic Coefficient

149.40

Gun Stats

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.45 Auto (.45 ACP)

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45 Auto Rim

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EuroOptic.com

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Sportsman's Warehouse

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MidwayUSA

$25.99

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Cheaper Than Dirt

$19.89

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Brownells.com

$19.99

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KYGUNCO

$16.76

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GrabAGun

$5.49

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Guns.com

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Academy Sports + Outdoors

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Optics Planet

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Gun Descriptions

.45 Auto (.45 ACP)

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)

45 Auto Rim

About The .45 Auto Rim Ammo, also known as the 11.5x23R, is a rimmed cartridge explicitly designed to be used in revolvers initially chambered for the .45 ACP Ammo. The .45 Auto Rim Ammo was developed in 1920 in the United States. Issues with .45 ACP Ammo led to creating the .45 Auto Rim Ammo. The first issue was that some of the spent cases needed to be removed by hand or a stick, which was a nuisance. The second issue concerned the headspace; the .45 ACP could slip forward in the M1917s, stopping them from being fired. However, adding a rim to the .45 ACP Ammo solved these issues. Loads offered for the .45 Auto Rim ammo were similar to the .45 ACP Ammo but were fully lead bullets. The lead bullets reduced the barrel wear in the shallow revolvers. The overall length of the .45 Auto Rim Ammo is 32.12mm, and the bullet diameter of the cartridge is 11.5mm. The 16-grain bullet is the lightest variant of the .45 Auto Rim Ammo, which can travel at a velocity of 1,050 feet per second and create an energy level of 392 ft.lbf. Manufacturer The .45 Auto Rim Ammo was produced by Peters Remington Corbon in 1920. Uses The .45 Auto Rim Ammo was created to replace the .45 ACP Ammo in the M1917s because of its gun issues.

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