.380 ACP ammunition, in stock. .380 is the pocket pistol cartridge, and it is quietly one of the best suppressor rounds available: subsonic in essentially every factory loading, low pressure, and producing so little gas that even a small can works well on it.
Its reputation suffers from being compared with 9mm, which carries roughly double the energy. That comparison misses the point. .380 exists so a pistol can be genuinely small, and the guide below covers what it does well, what it does not, and how to choose a load.
Suppressing it? See .380 suppressors. Buying alongside 9mm? See 9mm and .380. Everything we load is in the caliber index.
What .380 ACP is for
John Browning designed it in 1908 for compact blowback pistols, and the design brief has not changed since. It is short, low pressure and mild, which means a pistol chambered for it can be small, light and simple in a way a 9mm cannot.
Everything people criticise about .380 follows from that same design decision. It carries roughly 190 to 220 ft lbs, about half of 9mm. It is a close range cartridge. It was never meant to be anything else.
The trade is concealability, and for a pistol that lives in a pocket and is carried far more often than it is fired, that trade is a reasonable one.
Bullet weight and load choice
| Weight | Typical velocity | Notes |
|---|---|---|
| 85 to 90gr | roughly 950 to 1,000 fps | lighter, slightly flatter, more expansion velocity |
| 95 to 100gr | roughly 880 to 950 fps | the standard, best penetration for the cartridge |
The range is narrow because the cartridge is small. 95 grain FMJ is the default practice load. For defensive use the argument is between light hollow points that expand more readily and heavier loads that penetrate adequately, and .380 is one of the few cartridges where that debate genuinely matters, because there is not enough velocity for a bullet to do both well.
Every one of these is subsonic, so any of them suppresses well. There is no weight you need to avoid for sound reasons, which is the opposite of the situation in 9mm.
Why it suppresses so well
Three things work together, and none of them was intentional.
It is subsonic as standard. Roughly 900 to 1,000 fps sits comfortably under the sound barrier, so there is no sonic crack for a suppressor to fail to remove.
Gas volume is tiny. A small case with a modest powder charge means far less hot gas arriving at the can than in 9mm, let alone a rifle cartridge. Even a compact suppressor has an easy job.
Recoil is already mild, and adding a suppressor's weight makes a .380 close to recoilless. It is one of the easiest suppressed firearms to shoot accurately.
The obstacle is the host rather than the cartridge. Very few .380 pistols leave the factory with a threaded barrel, so sort that out before buying a can. Our .380 suppressor page covers the routes.
Blowback actions and what that changes
Many .380 pistols use simple blowback with a fixed barrel, because the cartridge is mild enough not to need a locking system. That has a useful consequence for suppressor owners.
A fixed barrel does not need a booster. Larger pistols use tilting barrels that must move to unlock, which is why their suppressors contain a spring loaded piston. On a fixed barrel .380 you replace that piston with a solid spacer, which is simpler, shorter and has one less moving part.
Some modern compact .380 pistols do use a locked breech, and those need the booster like any tilting barrel gun. Check which action yours uses before setting the can up.
.380 against 9mm, honestly
9mm carries roughly double the energy from the same .355 inch bullet, holds more rounds in a similar sized magazine, and costs less per round. On every performance measure that matters, 9mm wins.
What .380 offers is a smaller, lighter, simpler pistol, and the fact that it is subsonic without you having to think about bullet weight. If the gun has to disappear in a pocket, that is the whole argument, and it is enough for a lot of people.
For range work, practice volume and defensive energy, buy 9mm. The two are not interchangeable in any pistol, so keep them stored separately and check the headstamp when loading.
Shipping and compliance
We ship within the USA to lawful destinations only, and orders over $300 ship free. Ammunition rules vary by state and by city and remain the buyer's responsibility. See our shipping and delivery page, and SAAMI for cartridge specifications.
Frequently asked questions about .380 ACP ammunition
Is .380 ACP subsonic?
Yes, in essentially every factory loading, at roughly 900 to 1,000 fps. That is why it suppresses so well without any special ammunition.
Is .380 the same as 9mm?
No. They share a .355 inch bullet but use different case lengths and pressures and are not interchangeable. .380 is also called 9mm Short, 9mm Kurz or 9x17.
What bullet weight should I buy?
95 grain FMJ for practice. For defensive use, weigh light hollow points that expand more readily against heavier loads that penetrate better, since .380 rarely has enough velocity to do both well.
Is .380 powerful enough?
It carries roughly half the energy of 9mm, which is the trade you make for a much smaller pistol. It is a close range cartridge, and shot placement matters more here than in almost any other caliber.
Can I suppress a .380?
Yes, and it is one of the best calibers for it. The obstacle is finding a threaded barrel, since most .380 pistols are not sold with one. Any 9mm rated can will run .380.
Do I need a booster?
Often not. Many .380 pistols use a fixed barrel blowback action, so a solid spacer works better than a piston. Locked breech .380 pistols do need the booster.
Can I use my 9mm suppressor on .380?
Yes. Both fire a .355 inch bullet, so any 9mm rated can handles .380 safely, as does any larger pistol suppressor.
Why is .380 sometimes more expensive than 9mm?
Production volume. 9mm is made in enormous quantities worldwide, which drives the price down. .380 is produced in far smaller numbers despite using less material.