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10mm

10mm ammo (aka 10mm Auto) is the more powerful .40 caliber predecessor to 40 S&W ammo. It is one of the few semi-automatic pistol cartridges that you could trust for defense against the largest bears, and boasts unarguably sufficient striking energy to deter urban threats as well. The 10mm’s most common bullet weights are 165, 180 and 200 grains. The middle ground, which supplies a practical balance of manageable recoil and effective stopping power, is the most popular among American shooters.
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21 - 36 of 36

  1. 20rds - 10mm Underwood 200gr. Nosler JHP Ammo 20rds - 10mm Underwood 200gr. Nosler JHP Ammo
    $25.95
    $1.3/ppr

    ☆☆☆☆☆ 2 Reviews

    188 In Stock

    ☆☆☆☆☆ 2 Reviews

    Bullet type
    Jacketed Hollow-Point (JHP)     Muzzle Energy
    694     Casing Type
    Nickel-Plated Brass     Muzzle Velocity
    1250     Primer Type
    Boxer     Bullet Weight
    200 Grain
    Ballistic Data Available
  2. 20rds – 10mm Underwood 200gr. Hard Cast Ammo 20rds – 10mm Underwood 200gr. Hard Cast Ammo
    $26.95
    $1.35/ppr

    135 In Stock

    Bullet type
    Hard Cast     Muzzle Energy
    694     Casing Type
    Nickel-Plated Brass     Muzzle Velocity
    1250     Primer Type
    Boxer     Bullet Weight
    200 Grain
    Ballistic Data Available
  3. 200rds – 10mm Hornady Custom 180gr. XTP Ammo 200rds – 10mm Hornady Custom 180gr. XTP Ammo
    $274.95
    $1.37/ppr

    30 In Stock

    Bullet type
    Jacketed Hollow-Point (JHP)     Muzzle Energy
    650     Casing Type
    Brass     Muzzle Velocity
    1180     Primer Type
    Boxer     Bullet Weight
    180 Grain
    Ballistic Data Available
  4. 20rds – 10mm Sig Sauer V-Crown 180gr. JHP Ammo 20rds – 10mm Sig Sauer V-Crown 180gr. JHP Ammo
    $27.95
    $1.4/ppr

    83 In Stock

    Bullet type
    Jacketed Hollow-Point (JHP)     Muzzle Energy
    624     Casing Type
    Nickel-Plated Brass     Muzzle Velocity
    1250     Primer Type
    Boxer     Bullet Weight
    180 Grain
    Ballistic Data Available
  5. 20rds – 10mm Winchester Defender 180gr. JHP Ammo 20rds – 10mm Winchester Defender 180gr. JHP Ammo
    $30.95
    $1.55/ppr

    32 In Stock

    Bullet type
    Jacketed Hollow-Point (JHP)     Muzzle Energy
    614     Casing Type
    Nickel-Plated Brass     Muzzle Velocity
    1240     Primer Type
    Boxer     Bullet Weight
    180 Grain
  6. 20rds – 10mm Federal Fusion 200gr. Bonded SP Ammo 20rds – 10mm Federal Fusion 200gr. Bonded SP Ammo
    $31.95
    $1.6/ppr

    47 In Stock

    Bullet type
    Bonded Soft Point     Muzzle Energy
    639     Casing Type
    Brass     Muzzle Velocity
    1200     Primer Type
    Boxer     Bullet Weight
    200 Grain
  7. 200rds – 10mm Hornady Critical Duty 175gr. FlexLock Ammo 200rds – 10mm Hornady Critical Duty 175gr. FlexLock Ammo
    $319.95
    $1.6/ppr

    4 In Stock

    Bullet type
    Jacketed Hollow-Point (JHP)     Muzzle Energy
    523     Casing Type
    Nickel-Plated Brass     Muzzle Velocity
    1160     Primer Type
    Boxer     Bullet Weight
    175 Grain
    Ballistic Data Available
  8. 200rds – 10mm Federal Personal Defense HST 200gr. JHP Ammo 200rds – 10mm Federal Personal Defense HST 200gr. JHP Ammo
    $324.95
    $1.62/ppr

    22 In Stock

    Bullet type
    Jacketed Hollow-Point (JHP)     Muzzle Energy
    567     Casing Type
    Nickel-Plated Brass     Muzzle Velocity
    1130     Primer Type
    Boxer     Bullet Weight
    200 Grain
    Ballistic Data Available
  9. 20rds - 10mm Auto Federal Vital-Shok 180gr. Trophy Bonded JSP Ammo 20rds - 10mm Auto Federal Vital-Shok 180gr. Trophy Bonded JSP Ammo
    $32.55
    $1.63/ppr

    ☆☆☆☆☆ 2 Reviews

    46 In Stock

    ☆☆☆☆☆ 2 Reviews

    Bullet type
    Jacketed Soft-Point (JSP)     Muzzle Energy
    650     Casing Type
    Brass     Muzzle Velocity
    1275     Primer Type
    Boxer     Bullet Weight
    180 Grain
    Ballistic Data Available
  10. 20rds - 10mm Speer Gold Dot 200gr. JHP Ammo 20rds - 10mm Speer Gold Dot 200gr. JHP Ammo
    $32.95
    $1.65/ppr

    32 In Stock

    Bullet type
    Jacketed Hollow-Point (JHP)     Muzzle Energy
    537     Casing Type
    Nickel-Plated Brass     Muzzle Velocity
    1100     Primer Type
    Boxer     Bullet Weight
    200 Grain
    Ballistic Data Available
  11. 20rds – 10mm Hornady Critical Duty 175gr. Flexlock Ammo 20rds – 10mm Hornady Critical Duty 175gr. Flexlock Ammo
    $34.95
    $1.75/ppr

    165 In Stock

    Bullet type
    Jacketed Hollow-Point (JHP)     Muzzle Energy
    523     Casing Type
    Nickel-Plated Brass     Muzzle Velocity
    1160     Primer Type
    Boxer     Bullet Weight
    175 Grain
    Ballistic Data Available
  12. 20rds – 10mm Federal Personal Defense HST 200gr. JHP Ammo 20rds – 10mm Federal Personal Defense HST 200gr. JHP Ammo
    $34.95
    $1.75/ppr

    ☆☆☆☆☆ 1 Review

    171 In Stock

    ☆☆☆☆☆ 1 Review

    Bullet type
    Jacketed Hollow-Point (JHP)     Muzzle Energy
    567     Casing Type
    Nickel-Plated Brass     Muzzle Velocity
    1130     Primer Type
    Boxer     Bullet Weight
    200 Grain
    Ballistic Data Available
  13. 20rds – 10mm Federal 200gr. A-Frame Ammo 20rds – 10mm Federal 200gr. A-Frame Ammo
    $35.95
    $1.8/ppr

    4 In Stock

    Bullet type
    Bonded Soft Point     Muzzle Energy
    537     Casing Type
    Nickel-Plated Brass     Muzzle Velocity
    1100     Primer Type
    Boxer     Bullet Weight
    200 Grain
  14. 20rds – 10mm Hornady Handgun Hunter 135gr. MonoFlex Ammo 20rds – 10mm Hornady Handgun Hunter 135gr. MonoFlex Ammo
    $37.95
    $1.9/ppr

    3 In Stock

    Bullet type
    Solid Copper Hollow Point (SCHP)     Muzzle Energy
    518     Casing Type
    Brass     Muzzle Velocity
    1315     Primer Type
    Boxer     Bullet Weight
    135 Grain
  15. 20rds – 10mm Barnes VOR-TX 155gr. XPB Ammo 20rds – 10mm Barnes VOR-TX 155gr. XPB Ammo
    $39.95
    $2/ppr

    30 In Stock

    Bullet type
    Solid Copper Hollow Point (SCHP)     Muzzle Energy
    455     Casing Type
    Brass     Muzzle Velocity
    1150     Primer Type
    Boxer     Bullet Weight
    155 Grain
  16. 25rds – 10mm Fiocchi 155gr. SCHP Ammo 25rds – 10mm Fiocchi 155gr. SCHP Ammo
    $49.95
    $2/ppr

    43 In Stock

    Bullet type
    Solid Copper Hollow Point (SCHP)     Muzzle Energy
    467     Casing Type
    Brass     Muzzle Velocity
    1165     Primer Type
    Boxer     Bullet Weight
    155 Grain

21 - 36 of 36

Geltest header image

10mm ballistic gel test results

We shot 11 different loads of 10mm self-defense ammo into ballistic gel with a Glock 29 pistol.

Used firearms icon
Firearm Used Glock 29
Barrel length icon
Barrel Length 3.78"
Distance target icon
Distance to Target 10 Feet
Barrier icon
Barrier 4-layer cloth
Ammo 5-shot average penetration depth 5-shot average diameter 5-shot average velocity
20rds – 10mm Buffalo Bore 180gr. JHP Ammo 20rds – 10mm Buffalo Bore 180gr. JHP Ammo
  18.36"
0.7" 1269
20rds - 10mm Buffalo Bore 155gr. Barnes TAC-XP HP Ammo 20rds - 10mm Buffalo Bore 155gr. Barnes TAC-XP HP Ammo
  14.3"
0.79" 1275
20rds – 10mm Federal Hydra-Shok 180gr. JHP Ammo 20rds – 10mm Federal Hydra-Shok 180gr. JHP Ammo
  18.22"
0.58" 966
20rds – 10mm Hornady Critical Duty 175gr. Flexlock Ammo 20rds – 10mm Hornady Critical Duty 175gr. Flexlock Ammo
  23.56"
0.5" 1070
20rds – 10mm Hornady Custom 155gr. XTP Ammo 20rds – 10mm Hornady Custom 155gr. XTP Ammo
  19.16"
0.6" 1269
20rds – 10mm Hornady Custom 180gr. XTP Ammo 200rds – 10mm Hornady Custom 180gr. XTP Ammo 200rds – 10mm Hornady Custom 180gr. XTP Ammo
  20.66"
0.67" 1152
25rds – 10mm PMC Bronze 170gr. JHP Ammo 500rds – 10mm PMC Bronze 170gr. JHP Ammo 500rds – 10mm PMC Bronze 170gr. JHP Ammo
  40.94"
0.4" 1055
20rds – 10mm Sig Sauer V-Crown 180gr. JHP Ammo 20rds – 10mm Sig Sauer V-Crown 180gr. JHP Ammo
  25"
0.48" 1159
20rds - 10mm Speer Gold Dot 200gr. JHP Ammo 500rds - 10mm Speer Gold Dot 200gr. JHP Ammo 500rds - 10mm Speer Gold Dot 200gr. JHP Ammo
  19.7"
0.66" 1008
20rds – 10mm Underwood 180gr. JHP Ammo 20rds – 10mm Underwood 180gr. JHP Ammo
  13.38"
0.74" 1178
20rds - 10mm Underwood 200gr. Nosler JHP Ammo 20rds - 10mm Underwood 200gr. Nosler JHP Ammo
  20.32"
0.79" 1243
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More About 10mm Ammo

If you're new to 10mm ammunition or just have ea few questions about how it's typically used, you've come to the right place!

How Does 10mm Auto Compare to .45 ACP?

45 ACP vs. 10mm

The 10mm Auto cartridge and .45 ACP ammunition are often compared, but they are two different rounds with very different results at the range and in the field. While there are differences from load to load, you will generally find that the .45 ACP caliber is more powerful than the 10mm Auto. The .45 ACP usually is loaded with a larger bullet, although there is overlap in bullet weight, and although the 10mm tends to fly faster, the .45 ACP delivers greater muzzle energy. However, downrange energy can be better for the 10mm Auto. In most cases, you will find that 10mm Auto is cheaper on a per-cartridge basis than .45 ACP. For a more in-depth comparison, check out this 45 ACP vs. 10mm article at our blog.

Is 10mm Better than 44 Mag?

45 ACP vs. 44 magnum

Both are larger calibers than average for handguns but there are definitely differences in ballistics when looking at these two. To get an idea of which is better for your particular needs, check out our 10mm vs. 44 Magnum guide here.

Is a “.40” Caliber Round the Same as a 10mm Auto?

No. While 10mm Auto cartridges have a bullet diameter that is .4 inches, it is not the same round as other cartridges labeled with “.40” in the name. For example, 40 S&W ammunition, which used specs from the 10mm Auto during development, is a distinctly different cartridge. On this page, you will only find 10mm Auto cartridges.

Can .40 Caliber Pistol Shoot 10mm Ammo?

The 10mm cartridge is actually a bit longer than the .40 S&W. This difference in size can create problems with cycling. Also, the two cartridges fire at different pressures (the .40 S&W was designed for lighter recoil) so there are differences in how the cartridge will function internally as well. That said, many people fire both cartridges through the same handgun. You will want to conduct thorough research, consult experts, and check the manufacturer’s recommendations before interchanging these cartridges in the same firearm.

Is the 10mm a Good Self-Defense Cartridge?

Although it doesn’t share the mass popularity of the 9mm Luger or .45 ACP, the 10mm is a highly capable self-defense round that can deliver effective ballistics to a target. It can deliver muzzle speeds well over 1,000 feet per second and gives muzzle energy at about 600 to 800 foot-pounds, depending on the specific product. This won’t make it the most devastating round available, but for general users this is a perfectly capable round for self-defense and concealed carry. When choosing 10mm Auto cartridges for personal defense, look for rounds that have expanding bullets, such as hollow points or jacketed hollow points.

10mm for Target Shooting

While the 10mm is a good product for personal and home defense, it also finds use at the target range. Because it tends to use lighter bullets but still delivers speeds around 1,100 to 1,200 feet per second, it can maintain straighter trajectories. This makes it a popular round for target shooting among some circles, so if you’re using them at the range, look for full-metal jacket rounds for smooth feeding and less fouling.

Recent 10mm Reviews

  • ☆☆☆☆☆
    Great Ammo Peter Sir! I use to work for You Cleaning Primer Pockets a long time ago in Sturgis. You gave me a Job that Winter, no one else would. Re-Primed the Brass too. 10mm in my Glock 20 is Impressive. With my Custom Barrel in my Glock, getting 1350-60fps. Cup Pressure is Well with-in Tolerance too, Thanks!
    John E. Burns on 20rds – 10mm Corbon 150gr. JHP Ammo
  • ☆☆☆☆☆
    Great service and great ammo keep up the good work guys ammo to go rocks!!
    Adam on 20rds - 10mm Auto Federal Vital-Shok 180gr. Trophy Bonded JSP Ammo
  • ☆☆☆☆☆
    Never had to use it for defense ...yet, but it is my nightstand ammo. Capped off a few rounds in my Colt Delta Elite 1st-gen to test it and I was surprised how manageable the recoil was. It was not much more than 175 Gr. Winchester Silver-Tip ammo. Very manageable for follow-up shots.
    Kevin Abq on 20rds – 10mm Buffalo Bore 180gr. JHP Ammo
  • ☆☆☆☆☆
    Pound 4 pound this 10mm gets my attention thru this S&W for accuracy. The shooter has alot to do with it as well but the S&W 10mm is the choice for me. The 10mm is a great hunting round bar none. Hogs be gone.
    Chuck DeRouen on 25rds – 10mm PMC Bronze 170gr. JHP Ammo