WEBOct 13, 2017 · In the handout titled, “The proper loads of smokeless powder for Winchester Rifle and Pistol Cartridges” made by the company in the early 1900s, it shows using 45 grains of Laflin & Rand’s Sharpshooter powder for the .50-110 W.H.V. Also have a sheet from the 1890s that shows the velocity for .50-110-300 W Express to be 1540 fps.