30-30 diaphragm is blasted and the target receives its deadly dose of shockwave. When contacting the target the cartridge slips in and ignited. The cartridge structure prevents it to slide all the way to the firing fin and instead it stacks 1/2 inch sticking out of the tube.
Around the firing fin there are six radial holes.The Seaway is muzzle loaded, the diver strip a cartridge from 6 rounds bandolier on the diver's belt and place it into the muzzle with the.
