Liberty Ammunition was showing their new 10mm and 45 Colt loads at the 2014 NASGW show. The ammo is part of the company’s Civil Defense line. The 10mm load is rated at 2,400 fps, while the 45 Colt is listed as good for 1,800 fps.
The Civil Defense line of ammunition uses a lighter-than-typical-for-the-caliber copper bullet that is nickel plated. The loads are developed to keep the pressures all within SAAMI specs yet still push velocities much higher than is normally seen with handgun rounds.
On impact, the hollow point rapidly expands, causing a large wound. The expanding portion of the bullet breaks off while the base continues to penetrate to a 12″ – 16″ depth.