Does a 40 mm table tennis ball spin more or less than the original 38 mm one ?
The Milkor 37/38 mm Less Lethal “ Stopper ” Single - shot was designed and distributed in 1981 by Milkor ( Pty ) Ltd as a less - lethal anti-riot weapon along with the Milkor 40 mm Single shot Grenade Launcher which was designed as a reduced - cost grenade launcher for the SWAPOL Forces .