This cartridge is designed to be completely unaffected by cold weather conditions, humidity and moisture. The special Power piston wad developed for Kaiser virtually traps air and gunpowder at the bottom of the cartridge case. Don’t be upset when you drop your cartridge in the water, especially while duck hunting, on a boat or by the lake. Thanks to its carefully made six-star mouth closure, it never leaks water. You can use it with peace of mind by inserting it into the barrel.