THE ULTIMATE .25 ACP AMMUNITION IS INTENDED FOR PERSONAL DEFENSE IN BOTH INDOOR AND OUTDOOR CONDITIONS. THIS IS THE MOST POWERFUL .25 AMMUNITION AVAILABLE! THE PROJECTILE WEIGHS A MERE 29 GRAINS AND IS MADE FROM HIGH GRADE COPPER. THE PROJECTILE IS TOOLED WITH A LARGE HOLLOW CAVITY FOR EXCELLENT FEEDING IN MOST QUALITY SEMI-AUTOMATIC GUNS. THE AVERAGE MUZZLE VELOCITY IS AROUND 1200 FEET PER SECOND FOR EXCELLENT PENETRATION THROUGH HEAVY CLOTHING.