Back in production by popular demand! The Viper line of ammunition. This ammunition is .45 ACP loaded with 150g of 7 1/2 size nickel plated shot (apx. 110ct). This shot has a very thin coating of nickel for lubrication during loading and for it's travel down the bore. This ammunition will not hurt your rifling in any way. The brass has an integral shoulder for proper head-spacing in semi-automatic pistols. Most pistols will cycle correctly with the original recoil spring. If you have increased your spring weight, it may not cycle; however a quick hand cycle of the slide will chamber a fresh round. They are crimped in a star pattern with a round profile for positive feeding from the magazine. This ammunition is designed for small pest control and especially snakes (hence the Viper name). This is a must for those who hike, camp, or fish in areas that snakes may be present. Center the bore-line with the head of the snake, pull the trigger, and your snake problem is solved. Packaged 25 rounds per box. 8.85 per box