10MM AND BULK 10MM AMMO

About 10MM Ammo

10mm ammo, also known as 10mm Auto ammunition, is one of the most powerful and versatile semi-automatic handgun cartridges in the world.

Introduced in 1983, the 10mm Auto was developed by Colt in collaboration with legendary firearms expert Lt. Colonel Jeff Cooper to meet the demand for a flat-shooting, high-velocity cartridge that delivered magnum-level power in a semi-automatic platform.

Initially manufactured by the Swedish company Norma, the original 10mm round launched a 200-grain bullet at around 1,200 feet per second—dramatically outperforming many standard handgun cartridges of the time in both energy and trajectory.

The Bren Ten pistol from Dornaus & Dixon was the first firearm chambered for the 10mm, followed by Colt’s iconic Delta Elite and the Smith & Wesson Model 1076, which helped introduce the cartridge to law enforcement circles.

The cartridge’s big break came after the FBI adopted the 10mm Auto following the 1986 Miami shootout, seeking superior penetration and stopping power compared to the standard 9mm and .38 Special loads.

However, the full-power 10mm recoil proved too stout for many agents, leading to the development of the reduced-recoil 10mm “Lite” load, which eventually gave rise to the widely used .40 S&W cartridge.

Despite its rocky start in law enforcement, 10mm ammunition found a loyal following among civilian shooters, competitive marksmen, hunters, and outdoorsmen. Its balance of power, accuracy, and versatility makes it a standout choice for:

• Big game hunting
• Bear defense in the backcountry
• Long-range target shooting
• Tactical and defensive applications
• Practical shooting competitions like IPSC and USPSA

With modern advances in bullet technology, shooters can now find 10mm ammo in everything from mild target loads to hard-hitting defensive and hunting rounds that rival magnum revolver cartridges.

Brands like Hornady, Federal, Sig Sauer, Winchester, and Underwood offer 10mm loads tailored to everything from self-defense to hunting.

Today, the rise of firearms like Glock 20, Colt Delta Elite, Kimber 1911s, and 10mm-compatible carbines has fueled a resurgence in the popularity of 10mm Auto ammo.

Whether you’re looking for a reliable backcountry sidearm, a powerful self-defense pistol, or a competition-ready handgun, 10mm continues to hold its place as one of the most respected and adaptable handgun cartridges on the market.

10MM Ammunition Features

Here’s a look at the key features that make 10mm ammunition stand out in the world of handgun cartridges:

High Velocity and Energy
One of the most defining features of 10mm ammo is its impressive muzzle velocity and energy. Standard loads typically propel 180–200 grain bullets at speeds between 1,100 and 1,300 feet per second (fps), generating up to 700–750 foot-pounds of energy—surpassing popular calibers like .40 S&W and .45 ACP. This makes it ideal for both hunting and self-defense applications.

Flat Trajectory and Long-Range Performance
Thanks to its high velocity and superior ballistic profile, 10mm Auto offers a flat trajectory that extends its effective range beyond that of many other handgun rounds. This makes it an excellent choice for shooters who need precise shot placement at longer distances, whether on the range or in the field.

Wide Range of Bullet Types
Modern 10mm ammunition comes in a variety of bullet types and weights, including:

• Full Metal Jacket (FMJ) for training and range use
• Jacketed Hollow Point (JHP) for self-defense
• Hard Cast and Bonded Bullets for hunting and deep penetration
• Polymer-Tipped Rounds for improved aerodynamics and terminal performance

This versatility allows shooters to tailor their ammo choice to specific needs, from personal protection to big game hunting.

Magnum-Level Power in a Semi-Auto Platform
The 10mm Auto delivers magnum-level power in a semi-automatic handgun platform, offering shooters the stopping power typically associated with revolver cartridges like .41 Magnum, but with higher magazine capacity and faster reloads.

Manageable Recoil with Modern Firearms
While 10mm ammo has a reputation for stout recoil, advances in firearm design—such as recoil springs, ported barrels, and compensators—have made it increasingly manageable. Many modern pistols like the Glock 20, Colt Delta Elite, and Springfield XDM handle 10mm comfortably, giving shooters access to power without sacrificing control.

Broad Availability from Top Brands
Leading ammunition manufacturers like Federal, Hornady, Sig Sauer, Underwood, Winchester, and Remington offer a wide range of 10mm ammunition, from mild practice loads to full-power hunting and defense rounds. This widespread availability makes it easy for shooters to find the right 10mm ammo for any purpose.

Common 10MM Ammo Types

Whether you’re heading to the range, preparing for self-defense, or gearing up for hunting, understanding the common 10mm ammo types will help you choose the best load for your needs.

Full Metal Jacket (FMJ)
10mm FMJ ammo features a lead core encased in a hard metal jacket, designed for smooth feeding and minimal barrel fouling. FMJ rounds are the go-to choice for:

• Target practice
• Range training
• Competitive shooting

They offer consistent accuracy and are usually the most affordable option for high-volume shooters.

Jacketed Hollow Point (JHP)
10mm JHP ammo is designed with a hollowed-out tip that expands upon impact, creating larger wound channels and transferring energy efficiently. This makes it highly effective for:

• Personal defense
• Home protection
• Law enforcement use

Modern JHP rounds combine excellent stopping power with reliable feeding in semi-automatic pistols.

Soft Point (SP)
10mm Soft Point ammunition features a partially exposed lead tip that allows controlled expansion while maintaining deep penetration. This type is often used for:

• Medium game hunting
• Defense against large animals
• Situations requiring balanced expansion and penetration
• Hard Cast Lead and Solid Rounds

For backcountry and hunting applications, 10mm hard cast bullets or solid copper rounds are preferred. These non-expanding bullets offer exceptional penetration, making them ideal for:

• Bear defense
• Hog hunting
• Breaking through tough bone and hide

Polymer-Tipped (Ballistic Tip)
10mm polymer-tipped ammo features a pointed plastic tip over a hollow point bullet, improving aerodynamics for better accuracy and promoting rapid, controlled expansion. It’s an excellent choice for:

• Hunting deer or hogs
• Long-range handgun shooting
• High-precision applications

+P or High-Velocity Loads
Some manufacturers offer +P or high-velocity 10mm loads designed for maximum performance, producing magnum-like ballistics. These are best suited for:

• Experienced shooters
• Hunting
• Maximum energy transfer in defensive scenarios

Popular Uses for 10MM Ammunition

Self-Defense and Home Protection
One of the most common uses for 10mm ammo is self-defense. With its flat trajectory, deep penetration, and superior energy transfer, 10mm Auto delivers reliable stopping power. Jacketed Hollow Point (JHP) loads are particularly popular for personal protection, offering controlled expansion to maximize effectiveness while reducing the risk of over-penetration.

Hunting Medium and Large Game
Many hunters turn to 10mm ammunition for hunting medium to large game like deer, wild hogs, and even black bear. With proper loads—especially hard cast or bonded bullets—10mm offers excellent penetration and energy to ethically take down game animals, making it a top choice for handgun hunters and those carrying carbines or lever-action rifles chambered in 10mm.

Backcountry and Bear Defense
For hikers, campers, and outdoorsmen in bear country, 10mm ammo is a trusted option for wilderness defense. Hard cast or solid copper 10mm rounds can penetrate thick hide and bone, providing an effective layer of protection against dangerous wildlife.

Target Shooting and Range Practice
Full Metal Jacket (FMJ) 10mm rounds are ideal for range practice and target shooting. They provide consistent accuracy, are generally more affordable than premium hunting or defensive rounds, and allow shooters to practice with the same firearm they carry in the field.

Competitive Shooting and IPSC/USPSA
10mm Auto is popular in competitive shooting sports, including IPSC and USPSA. Its flat trajectory, high velocity, and power factor make it an exciting option for shooters looking to gain an edge in matches and tactical competitions.

Law Enforcement and Tactical Applications
Some law enforcement and tactical units use 10mm ammunition for its ability to defeat barriers, maintain energy over distance, and prov

10MM Ammo FAQs

Question: What is 10mm ammo?
Answer: 10mm ammo, also known as 10mm Auto ammunition, is a powerful semi-automatic handgun cartridge introduced in 1983. It was developed by Colt and Jeff Cooper to deliver superior velocity, energy, and range compared to popular handgun rounds like 9mm or .45 ACP.

Question: What is 10mm ammo used for?
Answer: 10mm ammunition is used for a wide range of purposes, including:

• Self-defense and home protection
• Big game and deer hunting
• Bear defense in backcountry settings
• Target shooting and range practice
• Competitive shooting in USPSA and IPSC

Question: Is 10mm Auto good for self-defense?
Answer: Yes, 10mm Auto ammo is highly effective for self-defense, offering flat trajectories, excellent stopping power, and deep penetration. Many shooters prefer jacketed hollow point (JHP) 10mm loads for concealed carry and home defense.

Question: Can I hunt with 10mm ammo?
Answer: Absolutely! 10mm ammunition is popular among handgun hunters for deer, hogs, and black bear. With proper bullet selection, such as hard cast or bonded rounds, 10mm Auto provides enough energy and penetration for ethical big game hunting.

Question: What’s the difference between 10mm Auto and .40 S&W?
Answer: While 10mm Auto ammo and .40 S&W share similar bullet diameters, 10mm has a longer case, higher pressure, and greater velocity. This makes 10mm more powerful, with superior energy and long-range performance compared to the .40 S&W.

Question: What bullet types are available for 10mm ammo?
Answer: Common 10mm bullet types include:

• Full Metal Jacket (FMJ) for range training
• Jacketed Hollow Point (JHP) for defense
• Hard Cast or Solid bullets for hunting and bear defense
• Polymer-tipped rounds for improved aerodynamics and accuracy

Question: What is the effective range of 10mm ammunition?
Answer: 10mm Auto has an effective range of about 50 to 100 yards in a handgun and up to 150 yards or more in a carbine or lever-action rifle, depending on load and shooter skill.

Question: Can I buy bulk 10mm ammo?
Answer: Yes! Bulk 10mm ammo is widely available online and in stores, typically sold in 200-round, 500-round, or 1,000-round cases. Buying bulk 10mm Auto ammo can save you money and ensure you have plenty of rounds for practice or hunting.

Question: Who makes the best 10mm ammunition?
Answer: Top brands producing 10mm Auto ammo include Federal Premium, Hornady, Sig Sauer, Underwood, Winchester, Remington, Buffalo Bore, and Sellier & Bellot. The best choice depends on your specific needs, such as defense, hunting, or target shooting.

Question: Is 10mm ammo suitable for beginners?
Answer: While 10mm ammunition is manageable in modern pistols, it produces more recoil than calibers like 9mm or .45 ACP. Beginners should practice with lighter loads or train with proper grip techniques to become comfortable with 10mm.