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
Save $30.00$409.99
$379.99
64 In stock now
-
Federal 45 ACP Ammo - 1000 Rounds of 230 Grain FMJ Ammunition
$499.9946 In stock now
-
PMC 45 ACP Ammo - 1000 Rounds of 230 Grain FMJ Ammunition
$443.9981 In stock now
-
Winchester 45 ACP Ammo - 500 Rounds of 230 Grain FMJ Ammunition
$234.9965 In stock now
-
Sellier and Bellot 45 ACP Ammo - 1000 Rounds of 230 Grain FMJ Ammunition
Save $35.00$414.99
$379.99
81 In stock now
-
Winchester 45 ACP Ammo - 200 Rounds of 230 Grain FMJ Ammunition
$103.9923 In stock now
-
Winchester 45 ACP Ammo - 600 Rounds of 230 Grain FMJ Ammunition
$289.9933 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.
Compare Ammo by Cartridge
190 head-to-head comparisons, grouped by platform. Find your cartridge, tap to open its matchups:
Handgun
23 cartridges
9mm 19
- .380 ACP vs 9mm
- 9mm vs 45 ACP
- 9mm vs 40 S&W
- .357 SIG vs 9mm
- 10mm vs 9mm
- 9mm vs 9mm Luger
- 9mm vs 40 vs 45
- 357 Magnum vs 9mm
- 5.7 vs 9mm
- 22 vs 9mm
- 9mm Makarov vs 9mm Luger
- 32 ACP vs 9mm
- 38 Special vs. 9mm
- 30 Super Carry vs. 9mm
- 5.56 vs 9mm
- .50 Action Express vs 9mm
- 7.62x25 vs. 9mm
- 38 Super vs. 9mm
- 25 ACP vs. 9mm
45 ACP 12
357 Magnum 7
44 Magnum 7
10mm 6
38 Special 5
25 ACP 2
32 ACP 2
357 SIG 2
454 Casull 2
30 Super Carry 1
38 S&W 1
45 GAP 1
460 Rowland 1
460 S&W 1
7.62x25 Tokarev 1
9mm Makarov 1
Rifle
58 cartridges
308 Winchester 18
- .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
- 6.5 Grendel vs .308
- 450 Bushmaster vs 308
- 277 Fury vs 308
- 300 PRC vs 308
- 7.62x39 vs 7.62x51
- 7.62x54r vs. 308 Winchester
- 300 Savage vs. 308 Win
223 Remington 17
- .223 vs .308
- .223 vs 5.56
- 300 Blackout vs 223
- 224 Valkyrie vs 223
- 22-250 vs 223
- 5.7x28 vs 223
- 450 Bushmaster vs 223
- 22 Hornet vs 223
- 204 Ruger vs 223
- 30 Carbine vs 223
- 350 Legend vs 223
- 277 Fury vs 223
- 243 Win vs 223 Rem
- 22 ARC vs. 223 Rem
- 22 LR vs. 223 Rem
- 6.5 Creedmoor vs. 223 Rem
- 223 Wylde vs. 223 Rem
5.56 NATO 17
6.5 Creedmoor 16
- 6.5 Creedmoor vs .308
- 6mm Creedmoor vs 6.5 Creedmoor
- 6.8 Western vs 6.5 Creedmoor
- 243 vs 6.5 Creedmoor
- 260 Remington vs 6.5 Creedmoor
- 28 Nosler vs 6.5 Creedmoor
- 6.8 SPC vs 6.5 Creedmoor
- 6.5x55 vs 6.5 Creedmoor
- 6.5 Creedmoor vs 270
- 6.5 Grendel vs 6.5 Creedmoor
- 6.5 PRC vs 6.5 Creedmoor
- 277 Fury vs 6.5 Creedmoor
- 300 PRC vs 6.5 Creedmoor
- 6.5 Creedmoor vs. 30-06 Springfield
- 6.5 Creedmoor vs. 300 Win Mag
- 6.5 Creedmoor vs. 223 Rem
300 Win Mag 13
- .300 Win Mag vs .308
- .300 Win Mag vs .30-06
- 300 Win Mag vs 338 Lapua
- 300 PRC vs 300 Win Mag
- 300 WSM vs 300 Win Mag
- 300 Win Mag vs 338 Win Mag vs 338 Lapua Mag
- 300 Win Mag vs 300 Norma
- 28 Nosler vs 300 Win Mag
- 7mm Rem Mag vs 300 Win Mag
- 277 Fury vs 300 Win Mag
- 300 Blackout vs 300 Win Mag
- 7mm PRC vs 300 Win Mag
- 6.5 Creedmoor vs. 300 Win Mag
