45 ACP vs. 45 Auto Is there a Difference?
“45 ACP” and “45 Auto” are two different names for the same exact cartridge. “ACP” stands for “Automatic Colt Pistol,” so when you see “45 ACP” on one box of ammo and “45 Auto” on another, you can rest assured they’re one and the same.
45 ACP Ammo at Ammo.com
Ammo.com offers high-quality 45 ACP ammo at incredible prices. Whether you need bulk 45 Auto ammo or just a box of self-defense rounds, we have you covered.
-
Magtech 45 ACP Ammo - 1000 Rounds of 230 Grain FMJ Ammunition
$449.9984 In stock now
-
PMC 45 ACP Ammo - 1000 Rounds of 230 Grain FMJ Ammunition
$457.9965 In stock now
-
Winchester 45 ACP Ammo - 500 Rounds of 230 Grain FMJ Ammunition
$231.9960 In stock now
-
Sellier and Bellot 45 ACP Ammo - 1000 Rounds of 230 Grain FMJ Ammunition
$459.9940 In stock now
-
Winchester 45 ACP Ammo - 200 Rounds of 230 Grain FMJ Ammunition
$103.9942 In stock now
-
Winchester 45 ACP Ammo - 600 Rounds of 230 Grain FMJ Ammunition
$289.994 In stock now
Best 45 ACP Ammo
If you want to feed your precious 45 Auto firearm the best ammunition, check out the links below. Our ammo experts have picked the top ammo for every situation!
Are the 45 ACP and 45 Auto the Same?
Yes, 45 ACP and 45 Auto are the same cartridge. The acronym in “45 ACP” stands for “Automatic Colt Pistol.” Shooters use the terms “45 Auto” and “45 ACP” interchangeably when referring to this type of handgun ammunition.
What Does ACP Stand For?
“ACP” stands for “Automatic Colt Pistol.” The same holds true for both 45 ACP and 380 ACP ammunition.
Ammo Comparisons
- .308 vs 5.56
- 6.5 Creedmoor vs .308
- .300 Blackout vs .308
- .300 Win Mag vs .308
- .243 vs .308
- .308 vs .30-06
- 7mm-08 vs .308
- .270 vs .308
- 7.62x39 vs .308
- .223 vs .308
- .338 Lapua vs .308
- .380 ACP vs 9mm
- .223 vs 5.56
- .300 Blackout vs 5.56
- 9mm vs 45 ACP
- 9mm vs 40 S&W
- .357 SIG vs 9mm
- 10mm vs 9mm
- 9mm vs 9mm Luger
- .243 vs .270
- .300 Win Mag vs .30-06
- .270 vs .30-06
- .40 vs .45
- 38 Special vs 357
- 9mm vs 40 vs 45
- 5.56 vs 7.62x39
- 338 Lapua vs .30-06
- .30-30 vs .30-06
- 300 PRC vs 338 Lapua
- .30-06 vs 7mm
- 300 Win Mag vs 338 Lapua
- 300 PRC vs 300 Win Mag
- 300 WSM vs 300 Win Mag
- 338 Win Mag vs 338 Lapua
- 12 Gauge vs 20 Gauge
- 10mm vs 357 Mag
- .30-30 vs 7.62x39
- 224 Valkyrie vs 22-250
- 17 HMR vs 22 Mag
- 7.62x39 vs .300 Blackout
- 45 ACP vs 45 Auto
- 45-70 vs 30-30
- 300 Blackout vs 223
- 357 Magnum vs 9mm
- 350 Legend vs 300 Blackout
- 224 Valkyrie vs 223
- 45 ACP vs 38 Super
- 6.5 Grendel vs .308
- 17 HMR vs 22 LR
- 10 Gauge vs 12 Gauge
- 22-250 vs 223
- 45 Colt vs 45 ACP
- 350 Legend vs 30-30
- 5.7x28 vs 223
- 5.7 vs 9mm
- 5.56 vs 5.7
- 22 vs 9mm
- Buckshot vs Birdshot
- 450 Bushmaster vs 308
- 450 Bushmaster vs 223
- Buckshot vs Slug
- 6.5 Grendel vs 5.56
- 6mm ARC vs 6.5 Grendel
- 44 vs 45
- 458 SOCOM vs 5.56
- 357 vs 44
- 32 ACP vs 380
- 300 Win Mag vs 338 Win Mag vs 338 Lapua Mag
- 450 Bushmaster vs 458 SOCOM vs 50 Beowulf
- 6mm Creedmoor vs 6.5 Creedmoor
- TMJ vs FMJ
- 44 Special Vs 44 Magnum
- 45 90 vs 45 70
- 6.8 Western vs 6.8 SPC
- 50 Beowulf vs 50 BMG
- 26 Nosler vs 6.5 PRC
- 28 Gauge vs 410
- 6.8 SPC vs 5.56
- 6.8 SPC vs 6.5 Grendel
- 6.8 Western vs 7mm Rem Mag vs .28 Nosler
- 6.8 Western vs 6.5 Creedmoor
- 22 Hornet vs 223
- 6.8 Western vs 6.5 PRC
- .410 vs 12 Gauge
- .410 vs 20 Gauge
- 22 LR vs 22 Mag
- 6mm ARC vs 243
- 7mm-08 vs 270
- 243 vs 6.5 Creedmoor
- Nickel vs Brass Casing
- 204 Ruger vs 223
- 50 Beowulf vs 5.56
- 260 Remington vs 6.5 Creedmoor
- 6mm Remington vs 243
- 28 Nosler vs 300 PRC
- 50 Beowulf vs 50 AE
- 22 Nosler vs 22-250
- 450 Marlin vs 45-70
- 300 Win Mag vs 300 Norma
- 458 SOCOM vs 300 Blackout
- 38-55 vs 45-70
- 22 Hornet vs 22 LR
- 300 Norma vs 338 Lapua
- 338 Lapua vs 50 BMG
- 28 Nosler vs 300 Win Mag
- 28 Nosler vs 6.5 Creedmoor
- 204 vs 22-250
- 458 SOCOM vs 45 70
- 44 40 vs 45 70
- 6.8 SPC vs 6.5 Creedmoor
- 450 Bushmaster vs 30-06
- 7mm Rem Mag vs 300 Win Mag
- 30 Carbine vs 223
- 25-06 vs 30-06
- 26 Nosler vs 28 Nosler
- 16ga vs 12ga
- 30 06 vs 7.62 x54R
- 9mm Makarov vs 9mm Luger
- 350 Legend vs 223
- 30 Carbine vs 5.56
- 6.5x55 vs 6.5 Creedmoor
- 6.5 Creedmoor vs 270
- M193 vs M855
- 450 Bushmaster vs 458 SOCOM
- 6.5 Grendel vs 6.5 Creedmoor
- 350 Legend vs 5.56
- .277 Fury vs 6.8 SPC
- 277 Fury vs 300 Win Mag
- 10mm vs .45 ACP
- 277 Fury vs 223
- 6.8 SPC vs 300 Blackout
- 6.5 PRC vs 6.5 Creedmoor
- 277 Fury vs 308
- 277 Fury vs 6.5 Creedmoor
- 350 Legend vs 450 Bushmaster
- 277 Fury Vs 5.56 NATO
- 10mm vs 40S&W
- 32 ACP vs 9mm
- 32 Special vs 9mm
- 8.6 Blackout vs 300 Blackout
- 30 Super Carry vs. 9mm
- 5.56 vs 9mm
- .50 Action Express vs 9mm
- 7.62x25 vs. 9mm
- 10mm vs 44 Magnum
- 300 Blackout vs 300 Win Mag
- 6.5 Grendel vs 300 Blackout
- 460 Rowland vs 10mm
- 300 RUM vs 300 PRC
- 300 Norma vs 300 PRC
- 45 GAP vs 45 ACP
- 7mm PRC vs 300 Win Mag
- 300 PRC vs 6.5 Creedmoor
- 300 PRC vs 308
- 357 SIG vs 357 Mag
- 7.62x39 vs 7.62x51
- 243 Win vs 223 Rem
- 30 Nosler vs 300 PRC
- 6.5 Creedmoor vs. 30-06 Springfield
- 450 S&W vs. 44 Magnum
- 6.5 Creedmoor vs. 300 Win Mag
- 454 Cassull vs. 45-70 Govt
- 454 Cassull vs. 44 Mag
- 7.62x54r vs. 308 Winchester
- 22 ARC vs. 223 Rem
- Subsonic vs. Supersonic Ammo
- Hornady Critical Defense vs. Critical Duty
- 45 Colt vs. 45 Long Colt
- 25 ACP vs. 22 LR
- 45 Long Colt vs. 44 Magnum
- 38 Special vs. 38 S&W
- 44 Special vs. 357 Magnum
- 5.45 vs. 5.56
- 38 Special vs. 380 ACP
- 30-06 vs. 5.56
- 6mm ARC vs. 5.56 NATO
- 38 Super vs. 9mm
- 22 ARC vs. 6mm ARC
- 408 CheyTac vs. 50 BMG
- 44 Special vs. 45 ACP
- 380 ACP vs. 45 ACP
- 22 LR vs. 223 Rem
- 6.5 Creedmoor vs. 223 Rem
- 25 ACP vs. 9mm
- 357 Magnum vs. 45 ACP
- 28 Gauge vs. 20 Gauge
