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Why is a 357 Magnum so powerful?

Author

Sarah Smith

Published Jan 11, 2026

357 Magnum long-gun brings this cartridge into a whole other realm. The longer barrel boosts the bullet's velocity by a substantial amount over the shorter barrels found on handguns. This allows a shooter or hunter to carry a compact rifle and a handgun that share common ammunition.

Is 357 Magnum stronger than 9mm?

The 357 Magnum round loaded with a 125-grain projectile reaches almost 1,500 feet per second and strikes targets with 585 foot-pounds of energy. Needless to say, ballistically, it outperforms the 9mm. The 357 Magnum also has no problems reaching the FBI standards and even exceeding them.

Is a 357 Magnum a powerful gun?

357 Magnum (9x33mmR) cartridge was for decades the most powerful commercially available round. Invented in 1934, the cartridge was developed by leading firearm authorities and quickly became the round of choice for revolver enthusiasts, law enforcement and military forces worldwide.

How powerful is a .357 Magnum?

357 Magnum ammunition. Full power . 357 Magnum loads push a 125-grain bullet to 1,450 f.p.s. from a 4-inch barrel. This is the case with Remington, SIG Sauer, Speer and Winchester ammo.

Is the 357 Magnum the most powerful handgun in the world?

Key Point: The . 357 Magnum remains one of the most powerful guns on the civilian market. One of the most persistent handgun calibers of the past one hundred years, the . 357 Magnum (9x33mmR) cartridge was for decades the most powerful commercially available round.

29 related questions found

Will 357 stop a bear?

357 Magnum or other similar-caliber load, a well-placed shot with a good bullet will certainly kill a bear, but it's not recommended.

What is the most powerful handgun in America?

With the entry of the . 500 S&W Magnum and the Model 500 revolver, Smith & Wesson recaptured the title of the most powerful handgun, and with it an increase in sales. The . 500 Smith & Wesson Magnum was designed from the outset to be the most powerful production handgun cartridge.

What is the most powerful handgun?

The Smith & Wesson Model 500 has held its rank as the world's most powerful handgun since it was first introduced in 2003.

Does a .357 have stopping power?

Their initial research, published in 1992 and entitled, Handgun Stopping Power: The Definitive Study, showed the . 357 Magnum had the best track record in actual shootings. It delivered one-shot stops at a rate well over 90%.

What does Magnum mean in guns?

A magnum cartridge is a firearm cartridge with a larger case size than, or derived from, a similar cartridge of the same projectile (bullet) caliber and case shoulder shape. The term derives from the .357 Magnum, the original cartridge with this designation.

Why are revolvers so powerful?

Revolvers are often shown to be more "powerful" than semiautomatic handguns, and this is true to some extent: revolvers can utilize much more powerful ammunition (see page pic) because they usually have a solid frame and therefore are physically stronger.

What's the difference between 357 Magnum and 38 special?

Modern 357 Magnum ammo is designed to fire a 158-grain bullet at a muzzle velocity of 1,235 FPS and a target thumping 535 ft-lbs of muzzle energy. Compare that to the 38 Special, which fires the same bullet weight at 755 FPS and has a muzzle energy of 200 ft-lbs, which is less than a 45 ACP.

What is the difference between a .357 Magnum and a .44 Magnum?

357 Mag is a much smaller diameter bullet than its . 44 Mag counterpart. While the case and overall length are similar, the . 44 Mag is much wider and voluminous cartridge that can hold more powder and withstand a higher amount of pressure when the powder is ignited.

What handgun is used by Navy Seals?

Naval Special Warfare Command made the decision to add the Glock 19 to the available inventory of the SEAL Teams a little over a year ago. They will slowly begin to phase out the Sig Sauer P226 and replace those with the Glock 19 platform.

What caliber has the most stopping power?

40 round, which supposedly combines the best features of the . 45 ACP and the 9mm. However, others say that the lowly . 22 LR has the best stopping power, since it stays in the target's body and bounces around, shredding arteries and punching holes in internal organs.

Is there a 357 Magnum rifle?

357 was developed. The Winchester Model 1873 is available in a few different versions, and they're all solid rifles. Our particular favorite, however, is the Winchester Model 1873 Sporter. There are a few configurations of the Sporter, with differences in the receiver finish and grip.

Why is 38 special so weak?

38 Special is weak because of black powder per se. We are only including these historical tidbits to attempt to explain how the 9mm, despite having a smaller case, can handle higher pressures than the . 38 Special.

Why did the M16 fail in Vietnam?

The ammunition that accompanied the rifles sent to Vietnam was incompatible with the M16 and was the principal cause of the failure to extract malfunctions. The result was the M16 often jammed, making the rifle “about as effective as a muzzleloader,” in the words of one officer.

Is Desert Eagle most powerful handgun?

The Desert Eagle is famed as one of the world's most powerful handguns, but is it really? Let's take a quick look at this fearsome handgun. The Desert Eagle 50 is probably one the best-known handguns of all time. It has made a lot of appearances in films, computer games and popular culture for many years.

What is the biggest handgun?

The Pfeifer-Zeliska . 600 Nitro Express Revolver is the largest caliber handgun in the world, and the most powerful. To provide some context, this handgun is so huge that its . 600 Nitro Express rounds are actually British-made rifle bullets.

Are 9mm and 357 the same?

357, . 380 auto and 9mm ammunition are all the same caliber. (Caliber is the size of the projectile, or bullet.) The different names are for marketing reasons or because of where the cartridge was developed.

Will a 9mm stop a black bear?

The 9mm can kill bears but is considered underpowered by experienced woodsmen. The 9mm has 350 to 450 ft/lbs. of energy, while 1,000 ft/lbs is considered the minimum for a bear hunting gun. Proper 9mm bullets yield sufficient penetration in soft tissue, but it may not stop a bear quickly enough to avoid being mauled.

What caliber pistol is best for bear defense?

44 Magnum or other larger cartridge. With this in mind, a high-quality handgun chambered in . 357 Magnum, like the Ruger GP100, can be a very effective bear-defense gun.