I think this is correct information. Someone please correct me if it is not. In the early 1900s you could get Winchester center fire rifle cartridges loaded with smokeless powder in a standard power kind of load, or in what Winchester called a “Winchester High Velocity” loading which had W.H.V. after the caliber or you could get them in a “High Power” loading… which had a H.P. after the caliber.
For example. The 1920 Newton catalogue lists the .38-55 cartridge. In fact the call it the .38-55-255. 55 grains of blackpowder originally. and 255 for the 255 grain bullet. There are 3 smokeless loadings in this catalogue.
.38-55-255 with a muzzle velocity of 1321 feet per second (fps)
.38-55-255 W.H.V. with a M.V. of 1593 fps; and
.38-55-255 H.P. with a M.V. of 1700 fps
Another cartridge with three levels of smokeless loadings was the .32-40.
.32-40-165 with an M.V. of 1427 fps
.32-40-165 W.H.V. with an M.V. of 1752 fps; and
.32-40-165 H.P. with an M.V. of 2065 fps.
.45-90-300 regularly was a black powder cartridge which had an M.V. of 1554 fps. The W.H.V. loading was smokeless and had a M.V. of 1992 fps.
.40-65-260 was a black powder cartridge which regularly had a M.V. of 1420 fps. The Smokeless W.H.V. loading had a bullet of 253 grains and a M.V. of