Liberty Ammunition Civil Defense 10mm Auto

Liberty Ammunition is introducing 10mm Auto into its Civil Defense Line of ammo. The lead-free ammo features approximately twice the velocity, three times the terminal effect, 30% more energy and less felt recoil. The ammo is nickel-plated, has solid copper projectiles and nickel-plated brass cases. The projectile is designed to fragment in soft tissue, resulting in a much greater transfer of kinetic energy to the target. Due to the proprietary design of the projectile and its solid copper construction, Liberty states that the round provides exceptional performance on hard targets such as drywall, car doors, auto glass and leather/denim without sacrificing any performance in soft tissue.

Liberty’s tests at their production facility showed the ammo achieved velocities greater than 2,400 FPS (nearly double that of standard 10mm ammo).


Description: Copper Monolithic, Hollow-Point, Fragmenting, Lead-Free, Personal Defense Round
Weight: 60 gr.
Velocity: >2,400 FPS
Kinetic Energy: >780 FPE
Accuracy: >2″ @ 25m
Terminal Effect: 4 -1/2″ W x 12″ D
MSRP (20 rd box): $34.99

Tom is a former Navy Corpsman that spent some time bumbling around the deserts of Iraq with a Marine Recon unit, kicking in tent flaps and harassing sheep. Prior to that he was a paramedic somewhere in DFW, also doing some Executive Protection work between shifts. Now that those exciting days are behind him, he has embraced his inner “Warrior Hippie” and assaults 14er in his sandals and beard, or engages in rucking adventure challenges while consuming craft beer. To fund these adventures, he writes medical software and builds websites and mobile apps. His latest venture is as one of the founders of; a search engine for all things gun related. He hopes that his posts will help you find solid gear that will survive whatever you can throw at it–he is known (in certain circles) for his curse…ahem, ability…to find the breaking point of anything.


  • Blake

    I’ll repost my comment from the last lead-free ammo article here, because I feel it’s worth making noise about:

    TL;DR: using copper ammo instead of lead is a huge farking waste of copper.

    Personally (& all political ramifications aside), in addition to all the other reasons given here, copper ammo is stupid for the following reason:

    – alternative metals used in lead-free ammo, particularly copper, are in extremely high demand now, & that demand is increasing as construction and electronics production is copper-centric. The price of a pound of copper has more than tripled over the last 10 years and is in high enough demand that criminals apparently find it profitable to destroy telecom patch points in order to remove the copper wiring. In countries such as Ghana, old computers & electronics are burned to expose the copper on their circuit boards for collection (… ). According to Wikipedia, the US mines a lot of its copper but still imports 35% of the copper used in industry.

    – lead on the other hand, is in declining use as initiatives such as RoHS ban its use in various industries due to its toxicity (even if that makes electronics much harder to produce & decreases their reliability, causing more industrial waste). The US lead market is basically self-sufficient. In fact according to the international lead association 80% of lead used in the US is recovered from secondary sources (e.g. recycling from ranges, lead production sites, etc) rather than smelting raw ore.

    So banning lead ammunition leads to:

    – the US importing more copper, increasing the market price
    – the cost of construction and electronics increasing as a result, with associated economic impact
    – less lead pulled & recycled from ranges, industrial sites, etc.

    So lead ammo is actually better for the economy. It’s better for the environment than the alternatives, as most of it goes into responsible shooting ranges that clean it up & recycle it, rather than staying at industrial sites where it has the potential to pollute groundwater.

    • Captain Paintball

      You are absolutely right. I am not a gun expert, so when I saw this was made with copper, I did a double take.

    • Giolli Joker

      And all on the top of the fact that most of these ultralight copper bullets are usually horribly poor performers when it comes to serious ballistic testing.

  • USMC03Vet

    These ammo prices remind me of this;

  • dp

    What-a-heck-a… is going on….
    ..twice the velocity and less felt recoil? Did we beat laws of physics or what?!

    • Giolli Joker

      Where’s the problem?
      Featherweight bullets have reduced recoil force, and physics do agree.


      remember that the formula for kinetic energy is 1/2mv^2 and the formula for force (recoil) is f=ma

      when you decrease the mass and increase the velocity you get more kinetic energy while reducing recoil.

      TLDR: lrn2physics

    • valorius

      Heavy bullets recoil much harder.

  • Bruce

    I find it a little weird that they sell ballistics gel and yet have no gel tests posted on their website. At least they don’t make any claims about terminal performance for their ammo.

  • Renegade

    Man, I remember when Liberty Ammo was ripping off Microsoft with their old Halo Point ammo.

    I bought a couplea boxes of it for novelty, mostly because I assumed they used the Halo name/font/coloring on the box without permission. Turns out I was right.

  • Hillurbillay

    The 5.7x28mm just shit itself.

    • valorius

      Lol…..elite s4m and t6 both exceed 2400fps from a five seven pistol.

  • Kenbob

    Shoot one of those in a dark hallway and you’ll be deaf and blind for a month. No thanks.

    • valorius

      No you wont.

  • Matt
  • Cymond

    It’s clear to me that this is a press release from Liberty Ammunition, but you might want to add a disclaimer, unless Tom R really wants to personally vouch for some of those claims.

    • Doc Rader

      True fact. I actually do have a chrono on order but no gel. I would love to do some terminal ballistics tests on some of the ammo that is coming out.

  • valorius

    At that velocity it may defeat some body armor.

  • guncontrol

    alright, someone do some tests on level 3a vests. please! and they should have used zinc, much more frangible.

  • jeff

    woah . we are approaching rifle ballistics here