I have a few of the Miroku manufactured J.M.Browning designs, but my 1873 modern copy is from Italy. Mine is in 44 Special and has a "Semi-Short" action job. The bolt throw is around 1.75 inches (or a little less) and the effort to operate the action is a twitch of the ring finger. It is so sweet!
The Henry, 1866, and 1873 actions have a action the is weak design with Black Powder (that is why the 73 went to the steel frame) but with modern steels, they are fine with factory ammo pressures. Just don't run Rugar loads and you'll be fine for a hundred years! (If you have the need for speed (Rugar Loads), pick up a Rossi 92 in 45 Colt, they can handle those and a lot more.
Ivan