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10 mm vs. 357; Breakdown – Which Is Better?

10 mm Auto and 357 Magnum are two popular cartridges. 10 mm is made for semi-automatic pistols. And the 357 is made for revolvers. They have almost similar configurations. There are also some differences between the 10mm and 357. For example, 10 mm has higher muzzle energy and velocity than 357. And the 357 Mag is a big and hard cartridge than the 10 mm.

If you know the velocity, size, recoil, muzzle energy, and trajectory of a cartridge, you will be able to compare any cartridges easily. It is very tough to find these specs in one place. But don’t worry. Lets do 10 mm vs. 357; Breakdown.

We will discuss the velocity, recoil, muzzle energy, and trajectory of the 10 mm Auto and 357 Mag and compare the 10 mm and 357 based on these specs. It will help you to know which cartridge is better for you.

10 mm vs. 357

 

Parts Of A Cartridge

Parts of a Cartridge

There are three main parts in a cartridge case.

Bullet

 

The bullet is the main and front part of a cartridge. Every company tries to make the bullet of hard materials. Because hard bullets can go through hard objects.

Gun powder

Gun powder is an object that gives energy to the bullet. Gun powders force out the bullet from the gun with a high velocity. The velocity of a cartridge depends on the quality and the quantity of the gun powder.

Primer

Primer

Primer Is a Chemical That Helps the Propellant (Gun Powder) to Burn.

The Difference Between Cartridge and Bullet

A case that contains bullets, gunpowder, and primer is called a cartridge. A good cartridge is an important thing for a gun. Because cartridge has an influence on velocity, recoil, and even ballistic power. A cartridge can increase the velocity also decreases the recoil of a gun.

Some people think bullets and cartridges are the same things. But a bullet is known as a part of a cartridge. In easy language, the part that comes out of the gun after firing is called a bullet.

10 mm Auto

10 mm Auto

Jeff Cooper was the inventor of the 10 mm Auto. He designed this cartridge in 1983. He introduced this cartridge with the Bren 10 pistol in 1983. 10mm is a semi-automatic pistol cartridge. It is popular for its high muzzle energy and velocity.

357 Magnum

357 Magnum

Famous firearms enthusiasts Elmer Keith, Phillip B. Sharp, and Douglas B. Wesson were the designers of the 357 Mag. They invented this cartridge in 1934. And the famous firearm manufacturer Smit & Wesson Winchester started to produce this cartridge in 1935. 357 Mag is a revolver cartridge. It is popular for its velocity, muzzle energy, and bullet size.

10 mm vs 357; Breakdown –  Amazing Technique

Muzzle energy

Size 10 mm Auto

Size

Parts name Size

  • Bullet diameter 0.4005 inches or 10.17 mm
  • Base diameter 0.425 inches or 10.80 mm
  • Neck diameter 0.423 inches or 10.7 mm
  • Rim thickness 0.055 inches or 1.4 mm
  • Rim diameter 0.425 inches or 10.80 mm
  • Case length 0.992 inches or 25.2 mm
  • Overall length 1.260 inches or 32 mm
  • Case capacity 1.56 cm^3

357 Magnum

Parts name Size

  • Bullet diameter 0.357 inches or 9.1 mm
  • Base diameter 0.379 inches or 9.6 mm
  • Neck diameter 0.379 inches or 9.6 mm
  • Rim thickness 0.060 inches or 1.5 mm
  • Rim diameter 0.440 inches or 11.2 mm
  • Case length 1.29 inches or 33 mm
  • Overall length 1.59 inches or 40 mm
  • Case capacity 1.70 cm^3

The above two tables show that the 357 Magnum is a big cartridge than the 10 mm Auto. The bullet diameter, the base diameter, and the neck diameter of the 10 mm cartridge are bigger than the 357 Mag’s bullet, base, and neck diameter.

The rim thickness of the 357 is slightly big. The rim diameter, case length, and case capacity of the 357 are very big than the 10 mm Auto’s rim, case length, and case capacity.

Velocity

Velocity

10 mm Auto

Bullet mass Velocity

  • 155 grains or 10 grams 460 m/s or 1500 ft/s
  • 175 grains or 11 grams 390 m/s or 1290 ft/s
  • 180 grains or 12 grams 400 m/s or 1300 ft/s

357 Mag

Bullet mass Velocity

  • 125 grains or 8 grams 440 m/s or 1450 ft/s
  • 158 grains or 10 grams 380 m/s or 1240 ft/s
  • 180 grains or 12 grams 330 m/s or 1080ft/s

Look at the table, and note down the velocity of the 180 grains bullets. The velocity of the 180 grains 10 mm bullet is 440 m/s. On the other hand, the velocity of the 180 grains 357 bullet is 330 m/s. 357’s velocity isn’t very bad. It is a decent velocity. But it isn’t that good if you compare it with 10 mm’s velocity.

Muzzle Energy

10 mm Auto

Bullet mass Muzzle energy

  • 155 grains or 10 grams 1051 J or 775 ft.lbs
  • 175 grains or 11 grams 880 J or 649 ft.lbs
  • 180 grains or 12 grams 708 J or 960 ft.lbs

357 Mag

Bullet mass Muzzle energy

  • 125 grains or 8 grams 790 J or 583 ft.lbf
  • 158 grains or 10 grams 731 J or 593 ft.lbf
  • 180 grains or 12 grams 632 J or 466 ft.lbs

Note the muzzle energy of the 180 grains 10 mm and 357 bullets. The 10 mm bullet’s muzzle energy is 708 J. And the 357 bullet’s muzzle is 632 J.

All types of 10 mm bullets have higher velocity and muzzle energy than the 357 bullets. So, it is crystal clear that the 10 mm Auto is more powerful than the 357.

Recoil

Recoil

Recoil is a vital scale for comparing between two cartridges. Everyone is very interested in the recoil of a cartridge. Recoil isn’t a very important thing for everyone. Usually, professional shooters don’t care about the recoil most. But recoil is an important thing for new shooters.

Because they can’t shoot accurately with a high recoil cartridge. Recoil depends on the velocity, muzzle energy, and size. The 10 mm Auto cartridge has more velocity than the 357 Magnum. That’s why you may feel more recoil in a 10 mm cartridge.

But the 357 Magnum is bigger than the 10 mm. That’s why some people say 357 Mag has more recoil than the 10 mm Auto. It would be best if you shoot with both of them. You will understand which cartridge has more recoil.

Trajectory

Trajectory

Trajectory for a bullet means the traveling path of the bullet. Normally, bullet travels vertically. But when the bullet starts to lose its power, it starts to fall to the ground. The trajectory depends on the bullet’s mass, velocity, and energy.

The trajectory isn’t a very important thing for a semi-Automatic pistol’s bullet. Because a semi-Automatic pistol’s bullet doesn’t travel a long distance. A 10 mm Auto travels an average of 40-50 yards straight. After that, it starts to fall to the ground. And the 357 travels average 50 yards straight.

Price

There isn’t a big price difference between the 10 mm and 357. You will find these cartridges at a low price.
The cost per round of the 10 mm is around 32 cents, and the cost for 357 is around 24 cents. These are the lowest price of these rounds. The highest price for 10 mm is around $1.50 per round. And the expensive 357 round is around $1.90.

Highlighted Features Of 10 mm Auto

Highlighted Features Of 10 mm Auto

  • High velocity
  • High muzzle energy
  • Low recoil
  • Highlighted features of 357 Magnum
  • Average velocity
  • Average muzzle energy
  • Hard bullet

Uses Of 10 mm Auto

Uses Of 10 mm Auto

Now, 10 mm is an underrated cartridge. It was very popular in its prime. This cartridge has high velocity and muzzle power. People use this cartridge for various purposes.

Hunting

It is a good cartridge for short to mid-range hunting. You can use this cartridge for deer hunting in the U.S.A. This cartridge is legal in the U.S.A for white-tailed deer hunting.

Self-Defense

Self-Defense

You also can use this cartridge for self-defense. Its high velocity will help you to defeat criminals. You can use this against a bear too. Besides, criminals use this cartridge most. Its high muzzle energy and velocity attract everyone to use this cartridge.

Uses Of 357 Mag

Uses Of 357 Mag

357 Magnum by Smit & Wesson Winchester is a cartridge for revolvers. It is a popular cartridge for target shooting. It is used for various purposes.

Hunting

Hunting

It isn’t an ideal cartridge for hunting. But you can take this as a backup cartridge for hunting. You will be able to hunt deer with this cartridge.

Target Shooting

Target Shooting

People also use the 357 cartridge for target shooting. It has low recoil. That’s why your shooting will be accurate.

Self-defense

357 Magnum cartridge has an average amount of muzzle energy and velocity. Most people use this cartridge for self-defense because of this muzzle energy and velocity.

Practice

You will find 357 rounds at a low price. That’s why you can keep this cartridge for practice purposes.

Final Verdict

It’s very tough to decide between 10 mm and 357. They are many similarities. You can’t say which is best based on the velocity, muzzle energy, size, trajectory, and recoil numbers. Because there isn’t a big gap in the velocity, muzzle energy, size, trajectory, and recoil.

10 mm and 357 both have some advantages and disadvantages. People use these cartridges for various purposes. And every people have different choices. That’s why it would be best if you use both of them. You will be able to figure out which cartridge is best for you. I hope now you have understand about the 10 mm vs. 357; Breakdown.

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