Revolvers generally do not need *moon clips* as their cartridges have a rim for the extractor to push against. Where so-called moon clips are used in revolvers, they are for rimless cartridges like 9mm or 45acp.
45 Colt cases have a rim than needs no moon clips to work. The Winchester 1873 lever rifle could not accommodate 45 Colt ammo as the rim was too small. I shudder to once again explain that there is no cartridge named 45 Long Colt as it is a 45Colt. Colt has never, ever, not once ever roll marked any SAA in so-called 45 LC.
The 45 LC controversy vs the S&W American has been settled prior to 1900. 45 LC is like saying 44 Mag is 44 caliber. Look it up rube.