New to CAS. Bought a pair of Ruger SASS Vaqueros in 45 Colt and yesterday, my new Taylor 1873 Comanchero, also in 45 Colt arrived. Hope to go shooting Saturday. Going to start with HSM ( my research says they are RimRock bullets) 200 gr RNFP and Trail Boss. What would be a good OAL to start with, which would work in both. I read where OAL can make or break both firearms.

Thanks,

Alan