When the boutique legal no tox shot became popular, Atlantic Guns in Silver Spring, MD offered a gross amount of steel ten gauge ammo for about five bucks a box, yes, a box of 25 shells. I had a very large covey of tens at the time, but didn't want to damage the bores on those collector guns. The option was to use my minty AYA Matador lightweight ten, the one with case hardened frame and double triggers. I shot that great gun for several years for all of my waterfowling. The steel shot caused no damage to the bores or chokes and made waterfowling on a budget a reality. Steel shot for long range waterfowling is another story. Yes the AYA Matador ten is my choice for a waterfowl gun. I load my short tens like they were 12 gauge shells for the same use. Skeet loads with about 21 grains of Red Dot and 1 1/8 ounces of shot with any wads that fit, just like the old days. Heavy waterfowl loads, look on the PGCA forum for information. Factory RST would be one choice.