This load was developed to be used in ALL/ANY 44 SPL firearms including Charter Arms. These other heavy 44 SPL loads exclude the Charter Arms as suitable for use with them. Due to popular request to make a potent defensive load in 44 SPL that can be fired in ALL 44 SPL or 44 MAG. firearms, Buffalo developed this hard cast Wad cutter 200 grain. load. It utilizes a "low flash" powder as nearly all defensive shooting in the US occur in low light when the criminal element is at work and it would place the shooter in a defenseless position if he or she were blinded by the flash of their own gun fire on the first shot.