In the video we use a dynamometer to compare two different projectiles. The Umarex T4E Rubber 68 caliber versus the Smasher from Less Lethal Ballistics. What we discover is the Smasher lands with greater surface impact force even though the lighter faster T4E Rubber has a greater joules rating at the muzzle. Test was done at 64 degrees F at a distance of 5 meters.
