This target kit is designed to be used with all firearms from 22 Long Rifle to 50 BMG. Extremely hard hitting, it comes in a 6"x6"x1" cardboard box, making it the easiest kit on the market to mix and shoot. Range friendly, it is debris less, and does not leave plastic bottles laying about that you see with other binary kits. Minimum shooting distance of 100y/m. This truly isn't your Grandpa's binary. Explosive equivalent of 4 pounds of common binary.