We normally use the Winchester Featherlight AA's. 26 grams of 8 shot going 980 fps. However, I have also used Reminton's version, which is 7/8 oz of 8.5shot going 1100 fps. The Remington round is a slightly louder, but still quiet enough for our purposes. We've started reloading too, the recipe is something like 13 grains of WAAlite powder, WAA12L wad, 7/8 oz of shot. Seems to be about the equivalent of the Winchester Featherlights, but at half the cost. Thanks, that was my buddy 'Gadget Bob' who has the Browning Gold Fusion that was converted to cycle the featherlight loads. That was kind of an experiment, and so far, it hasn't been completely successful. It works, but it unacceptably unreliable. He's still trying to work out the kinks. So yes, we're all using pump guns most of the time, I shoot an 870, the others use BPS's.