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The Daily Insight

Why is it called a 38 Special?

Author

Michael King

Updated on March 07, 2026

Despite its name, the caliber of the . 38 Special cartridge is actually . 357 inches (36 caliber/9.07 mm), with the ". 38" referring to the approximate diameter of the loaded brass case.

What does special mean 38 Special?

There's no difference between a . 38 and a 38 special. The former refers to a caliber with a . 357 inch bullet diameter, while the latter is a cartridge variant under the . 38 caliber.

What is the difference between a 38 and a 38 Special bullet?

The main difference between 38 and 38 special is that 38 is a caliber, i.e. the internal diameter of a gun barrel, and is usually used to refer to all cartridge variants that can be used in it, while 38 Special is a special cartridge variant of 38 caliber bullet.

Why are 38 and 357 the same?

38 Special and . 357 Magnum are exactly the same in width. It's only when looking at their length that you'll notice a difference. Many handgun owners shoot one or both of these rounds, and while the cartridges have a common heritage, these bullets perform in strikingly different ways.

What makes a gun a magnum?

TLDR: Magnum ammunition comes with extra propellant (gunpowder) and/or a more generous projectile. Unlike other firearm terminology, “magnum ammunition” is both specific and vague. This can cause some confusion when you need to give a character a firearm with some extra oomph.

357 MAGNUM VS 38 SPECIAL VS SHEET METAL

Is 38 Special more powerful than 9mm?

Standard pressure . 38 Special only produces 264 foot-pounds of force (147-grain bullet at 900 feet per second out of a 4-inch barrel), while standard pressure 9mm can produce 365 foot-pounds of force (124-grain bullet at 1,150 feet per second). This is 38.25% more energy at the muzzle in favor of the 9mm.

Why is a 22 called a 22?

. 22 caliber, or 5.6 mm caliber, refers to a common firearms bore diameter of 0.22 inch (5.6 mm). Cartridges in this caliber include the very widely used .

Can .357 also shoot 38?

No; . 357 Magnum was specifically designed so it cannot be fired from handguns chambered in . 38 Special, but you can shoot .

Are .38 and .380 the same?

38, . 357, . 380 auto and 9mm ammunition are all the same caliber. (Caliber is the size of the projectile, or bullet.)

Is a .38 good for self defense?

Is 38 Special A Good Self Defense Round? The gist of . 38 Special is that it's a medium bullet at medium velocity. It can be effective for personal defense but ammunition selection (and placement!) is important, especially if your gun has a shorter barrel length.

What pistol do Navy SEALs carry?

The P226 MK25 is identical to the pistol carried by the U.S. Navy SEALs, the fleet's special warfare operators. The railed P226 chambered in 9mm and engraved with an anchor on the left side of the slide is the official sidearm of the SEALs.

Is .38 bigger than 9mm?

Both bullets are equal in bullet diameter, the 9mm case is about 3/8 of an inch shorter than the . 38 Special but boasts double the pressure.

What does ACP stand for in ammo?

45 ACP (Automatic Colt Pistol) or . 45 Auto (11.43×23mm) is a rimless straight-walled handgun cartridge designed by John Moses Browning in 1904, for use in his prototype Colt semi-automatic pistol.

Do they make 9mm revolvers?

Ruger LCR. The Ruger LCR 9mm is a solid self-defense option that is easy for anyone to operate. There are some law enforcement officers that like to use this one for a back-up. Built for concealed carry, this Ruger revolver comes in at a trim 17.2 ounces, making it a breeze to conceal in a holster or purse.

What is the difference between a 357 and a 357 Magnum?

357 Magnum wins, because full power ammo pushes a 125-grain bullet 100 f.p.s. faster than the . 357 SIG in barrels of the same length. It's that simple. Comparing full power .

Does Glock make a 357?

Designed as a compact model, the GLOCK 32, in 357 SIG, offers a unique combination of versatility, convincing ballistics, optimum carry comfort, and the legendary GLOCK pistol reliability.

What is the biggest caliber?

Here are 10 of the biggest ever built ranked by caliber.

  • 2B1 Oka. Caliber: 420-millimeter. ...
  • The 100-Ton Gun. Caliber: 450-millimeter. ...
  • BL 18 Inch Railway Howitzer. Caliber: 457.2-millimeter. ...
  • "40cm/45 Type 94" Naval Gun. Caliber: 460-millimeter. ...
  • Mons Meg. Caliber: 520-millimeter. ...
  • Karl-Gerät. ...
  • Schwerer Gustav and Dora. ...
  • Tsar Cannon.

Why use a revolver instead of an automatic?

The Takeaway. Whether you choose to carry a revolver or a semi-automatic pistol, you should understand the differences between them. Revolvers are more reliable with certain types of ammunition and are simpler to operate. However, semi-automatic pistols offer increased magazine capacity and are easier to reload.

What caliber is a AR 15?

The AR-15 is nominally chambered in .223/5.56mm NATO, but many variants have been produced in different calibers such as .22-LR, 7.62×39mm, 9×19mm Parabellum and shotgun calibers.

What is the best caliber for home defense?

The most common caliber for a home defense handgun is 9mm. This does mean that your gun will penetrate through walls and can possibly harm your loved ones during a home invasion. Also, many experts recommend hollow point ammo because of the power, and they are a bit safer to shoot in a home defense scenario.

What does AR stand for?

The AR in "AR-15" rifle stands for ArmaLite rifle, after the company that developed it in. the 1950s. "AR" does NOT stand for "assault rifle" or "automatic rifle." • AR-15-style rifles are NOT "assault weapons" or "assault rifles." An assault rifle is fully.

What does +P in ammo mean?

Overpressure ammunition, commonly designated as +P or +P+, is small arms ammunition that has been loaded to produce a higher internal pressure when fired than is standard for ammunition of its caliber (see internal ballistics), but less than the pressures generated by a proof round.