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10mm Ammo, also known as 10mm Auto, is incredibly versatile and one of the few handgun rounds that you can also use for hunting small or medium-sized game. However, this semi-automatic cartridge is also an excellent choice for concealed carry weapons, providing superior firepower in self-defense situations. With tons of Underwood Ammo 10mm Auto Ammunition, Hornady 10mm Auto Ammunition, Super Vel Ammunition 10mm Auto Ammunition, and more from top brands in the industry, you can snag some of the best ammo for an even better price. We have a huge selection of 10mm ammo, including 10mm hollow points, which are the ideal round for self defense and hunting, as the bullets expand in the target. We also have 10mm FMJ ammo for target practice, letting you stock up on a few boxes to shoot for a long time without breaking the bank. No matter what kind of 10mm ammo you're looking for, we can help you find the perfect rounds to meet your needs and ensure your favorite firearm is operating at it's best.![]()
Is 10mm Ammo the Same As 40 Cal?
The short answer is no. While these calibers are similar, they are not the same, and you should not use them interchangeably in your firearms. In fact, 10mm ammo is larger and faster than .40 S&W, which is why it was initially developed. This gave people who wanted a round with more stopping power than 9mm and .45 ACP more options, although 10mm ammo never had widespread adoption.
Why Did FBI Stop Using 10mm?
The FBI adopted 10mm ammo as their standard handgun ammunition in 1989, as a result of their needs following the FBI Miami shootout. However, they decommissioned the round shortly after and it never gained a lot of traction. This decision was made after extensive testing by their Firearms Training Unit, as this unit believed 10mm ammo had too much recoil to train new recruits reliably. Without proper training, the recruits couldn't be as effective in the field.
Will a 10mm Stop a Bear?
Many hunters, hikers, and homesteaders love 10mm ammo as their choice for bear defense, and for good reason. This round is extremely versatile, packing a big punch in a small package. Plus, most people using it for bear defense have experience with firearms, so the increased recoil over similar calibers isn't as much of a dealbreaker. Plus, most 10mm Auto handguns are semi-automatic, so you have a large magazine and quick firing time that lets you take follow-up shots to keep you safe. Since 10mm can stop a bear, it is also an effective tool for coyotes and other predators that you may encounter, as well as for self defense if you're using 10mm hollow points.
Shop 10mm Ammo at OpticsPlanet!
We have a huge variety of 10mm Ammo available for your specific shooting needs. Full Metal Jacket (FMJ) rounds are ideal for range training or competitive target shooting while 10mm Hollow Points are best suited for hunting or home defense. If you need some guidance while shopping online for ammo, check out our helpful How-to Guide or brush up on your vocab with our Ammo & Reloading Glossary. Shop with us at OpticsPlanet or on our top-rated mobile app to get all the tactical, hunting, and outdoor gear you crave shipped right to your door.
128 Products in 10mm Auto Ammunition
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 155 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 50
- Bullet Type: Round Nose Flat Point (RNFP)
- Bullet Weight: 200 grain
- Cartridge Case Material: Brass
Best Rated Product
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- Caliber: 10mm Auto
- Number of Rounds: 50
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 180 grain
- Cartridge Case Material: Brass
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Best Rated Product
Our customers have spoken – this is one of the best rated products in the Ammunition category! See more best rated Ammunition products
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 175 grain
- Cartridge Case Material: Nickel Plated Brass
- Caliber: 10mm Auto
- Number of Rounds: 50, 500
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 180 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 50
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 180 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Solid Copper Spun SCS
- Bullet Weight: 190 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Monolithic
- Bullet Weight: 135 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 175 grain
- Cartridge Case Material: Brass
Stock up and Save 15% on Select Hornady Ammunition
Eligible models will have a savings offer and the coupon code to use below. Add the item to your cart and enter the coupon for savings on that select model! Limited time only. Cannot be combined with other promotions or offers. See promotion details.
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- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 155 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Monolithic
- Bullet Weight: 150 grain
- Cartridge Case Material: Nickel Plated Brass
Best Rated Product
Our customers have spoken – this is one of the best rated products in the Ammunition category! See more best rated Ammunition products
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Flat Nose (FN)
- Bullet Weight: 220 grain
- Cartridge Case Material: Nickel Plated Brass
- Caliber: 10mm Auto
- Number of Rounds: 50
- Bullet Type: Full Metal Jacket Truncated-Cone (TCFMJ)
- Bullet Weight: 200 grain
- Cartridge Case Material: Brass
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- Caliber: 10mm Auto
- Number of Rounds: 25
- Bullet Type: Jacketed Hollow Point (JHP), Solid Copper Hollow Point (SCHP)
- Bullet Weight: 130 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Fluid Transfer Monolithic (FTM)
- Bullet Weight: 150 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 200 grain
- Cartridge Case Material: Brass
Best Rated Product
Our customers have spoken – this is one of the best rated products in the Ammunition category! See more best rated Ammunition products
- Caliber: 10mm Auto
- Number of Rounds: 50
- Bullet Type: Lead-Free Ball
- Bullet Weight: 125 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Monolithic
- Bullet Weight: 140 grain
- Cartridge Case Material: Nickel Plated Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 200 grain
- Cartridge Case Material: Nickel Plated Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 200 grain
- Cartridge Case Material: Nickel Plated Brass
Best Rated Product
Our customers have spoken – this is one of the best rated products in the Ammunition category! See more best rated Ammunition products
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 180 grain
- Cartridge Case Material: Nickel Plated Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Monolithic
- Bullet Weight: 115 grain
- Cartridge Case Material: Nickel Plated Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 180 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 50
- Bullet Type: Jacketed Flat Point (JFP)
- Bullet Weight: 170 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Fluid Transfer Monolithic (FTM)
- Bullet Weight: 115 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Hollow Point (HP)
- Bullet Weight: 115 grain
- Cartridge Case Material: Brass
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- Caliber: 10mm Auto
- Number of Rounds: 50
- Bullet Type: Frangible
- Bullet Weight: 125 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Open Cavity Design (OCD)
- Bullet Weight: 70 grain
- Cartridge Case Material: Nickel Plated Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Core-Lokt Hollow Point (SP)
- Bullet Weight: 200 grain
- Cartridge Case Material: Nickel
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Hollow Point (HP)
- Bullet Weight: 145 grain
- Cartridge Case Material: Brass, Steel
- Caliber: 10mm Auto
- Number of Rounds: 50
- Bullet Type: Total Syntech Jacket Flat Nose (TSJFN)
- Bullet Weight: 205 grain
- Cartridge Case Material: Brass
This item is currently on sale and has a new, lower price! See more items on sale
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 150 grain
- Cartridge Case Material: Brass
Best Rated Product
Our customers have spoken – this is one of the best rated products in the Ammunition category! See more best rated Ammunition products
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 135 grain
- Cartridge Case Material: Nickel Plated Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 155 grain
- Cartridge Case Material: Brass
Save Now AND for Later! Coupon Savings AND Bonus Bucks on Hornady Products!
Eligible models will have a savings offer and the coupon code to use below. Add the item to your cart and enter the coupon for savings on that select model! Limited time only. Cannot be combined with other promotions or offers. See promotion details.
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Dangerous Game Handgun (DGH)
- Bullet Weight: 200 grain
- Cartridge Case Material: Brass
Best Rated Product
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- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Hollow Point Frangible (HPF)
- Bullet Weight: 125 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 200 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Round Nose Flat Point (RNFP)
- Bullet Weight: 200 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Solid
- Bullet Weight: 200 grain
- Cartridge Case Material: Brass
Best Rated Product
Our customers have spoken – this is one of the best rated products in the Ammunition category! See more best rated Ammunition products
- Caliber: 10mm Auto
- Number of Rounds: 50
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 180 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 200
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 180 grain
- Cartridge Case Material: Brass
Best Rated Product
Our customers have spoken – this is one of the best rated products in the Ammunition category! See more best rated Ammunition products
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Hard Cast Flat Nose (HCFN)
- Bullet Weight: 200 grain
- Cartridge Case Material: Nickel Plated Brass
Best Rated Product
Our customers have spoken – this is one of the best rated products in the Ammunition category! See more best rated Ammunition products
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Fragmenting Hollow Point (FHP)
- Bullet Weight: 60 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 50
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 180 grain
- Cartridge Case Material: Nickel Plated Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Flat Nose (FN)
- Bullet Weight: 240 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 200 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 50
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 180 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 165 grain
- Cartridge Case Material: Brass
Best Rated Product
Our customers have spoken – this is one of the best rated products in the Ammunition category! See more best rated Ammunition products
- Caliber: 10mm Auto
- Number of Rounds: 50
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 180 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 50
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 180 grain
- Cartridge Case Material: Brass
Best Rated Product
Our customers have spoken – this is one of the best rated products in the Ammunition category! See more best rated Ammunition products
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 155 grain
- Cartridge Case Material: Nickel Plated Brass
- Caliber: 10mm Auto
- Number of Rounds: 50
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 180 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Gas Checked Flat Nose (GCFN)
- Bullet Weight: 200 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 50
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 180 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 50
- Bullet Type: Hollow Point (HP)
- Bullet Weight: 200 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Jacketed Hollow Point (JHP)
- Bullet Weight: 180 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Hard Cast Flat Nose (HCFN)
- Bullet Weight: 220 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Bonded Soft Point (BSP)
- Bullet Weight: 180 grain
- Cartridge Case Material: Nickel Plated Brass
- Caliber: 10mm Auto
- Number of Rounds: 100
- Bullet Type: Full Metal Jacket (FMJ)
- Bullet Weight: 180 grain
- Cartridge Case Material: Brass
- Caliber: 10mm Auto
- Number of Rounds: 20
- Bullet Type: Semi-Spitzer Soft Point
- Bullet Weight: 200 grain
- Cartridge Case Material: Nickel Plated Brass