Both RST and Polywad make low pressure loads, suitable for vintage doubles in 2", 2 1/2", 2 3/4" configurations, even spreaders for tight choked guns. All made here in America, by Americans, for $10-$15.00 per box depending on what you want, they will even make them custom for you. They hold pressures generally under 9000#s, light recoil, burn dirty, travel around 1100-1200 fps., for practical hunting, shooting birds over point, out to 40 yards they kill fine. They are not forgiving of being "just off a little" on aim, or extreme range. If I hunted over flushing dogs, where shots are a trifle longer, I wouldn't use them on pheasant sized birds either. For the purist, they even make paper, paper wad shells, everything degrades but the brass, and the shot of course, plus you get the first hand experience of why grandpa's gun has that slight ring bulge in the left barrel, that's the paper wad that didn't make it out the end, before another shot was fired unwittingly behind it! When I serious, I shoot an SX2 Light, and 1 3/8ths ounce of Fiochi golden pheasant loads. I don't trust Federal, call it the Vietnam syndrone, to many Federal .223's didn't eject from M-16's early on, to please me, all Federal. They tried to make them cheaper and it didn't work. I have a long memory.