.38-55Win; love the old ca'tridges. I have five Model 94 rifles, one each in .25-35, .32-40. .38-55, .30 Win., and .32 Win. Spec. I was playing with my Henry repro, in .44-40, and the 94s in .38-55 and .32 WS one day on a range with berms at 200 and 300 yards. Had some metal 5 gal. buckets out there that had been used for hod, and they had dried cement/concrete built up on the insides, and dribbles all down the outsides, weighed about 25 ponds or so, and I set some up at 200 and 300, and started plinking; the .44-40 was stoked with both black powder and some in smokeless, .32 was all smokeless, and the 38 was black. Short tale is, the 44 and 38 had trajectories like a rainbow, but once the range was sorted out they hit like a hammer. The .44s would rock those buckets, and once in a while, knock one over at 200; the .38s just whacked everything, and even at 300, the cement would fly, and the buckets would roll. Was a fun day.