ROYAL BLUESTEEL MAGNUM MAGNUM HUNTING CARTRIDGES FOR WETLANDS Rio's Royal BlueSteel Magnum cartridge is the perfect shotshell for wetlands where you need great knock-down power, high velocities and most importantly, lead-free ammunition. When hunting takes place in wetland areas, distances are long and opportunities are scarce, you must have trustworthy ammunition. For this reason, Rio's Royal BlueSteel Magnum, which is manufactured with their proprietary perfectly spherical steel shot, offers velocities above 1,500 fps, delivering incredible energy on target and great efficiency in bringing in ducks and geese. This is why it is the choice hunting cartridge of t Mfg: Rio Outdoors Corp.