Finally decided to watch this mini-series on Netflix. Will finish the last two episodes tonight. Nice to see a Henry in the hands of the Heroine, a Schofield in the Marshal's holster. The protagonist, Roy Goode "uses a .38" I am assuming it was a .38 RM, as I saw a flash of one (smooth cylinder with no step) when he shoots the Rancher that was fixing to hang him. Also appearances by 1875 Remingtons, 1860 Cartridge conversion, 1866s, 1873s, some Sharps, and Winchester 1876 I believe in a .50 caliber.... (that one wizzed by me). Period leather was also decent.
All in all, Hollywood for sure but not too terrible. While there are inaccuracies, it is actually entertaining. One observation, they seem to cover vast distances very quickly on horseback (Taos New Mexico to Montana, etc.)