A fellow cowboy action enthusiast runs a pair of Remington 1875's as his main match guns. Really likes them. Not everyone likes the feel of the Remington revolvers. But, they are good shooters, just the same. Plus, versatile and accurate.
As Fingers284 mentions, the 1875 is a cartridge-firing revolver. Most I see are chambered for .45 Colt. Make dandy, low recoil shooting irons when loaded with either .45 Schofield, or Cowboy .45 Special cartridges.