Tashton,
Without seeing it, what it sounds like you have is a Model 1878 DA. Does the trigger guard come off? What length is the barrel? Sometimes the barrels were changed out. If it is a 6" barrel it is referred to as Alaskan/Phillipines model. (Large loop trigger guard for gloved hands). Sounds like a keeper. And yes, it will shoot .45 Colt.
By the way, value in 50% condition is about $1000.
Without seeing it, what it sounds like you have is a Model 1878 DA. Does the trigger guard come off? What length is the barrel? Sometimes the barrels were changed out. If it is a 6" barrel it is referred to as Alaskan/Phillipines model. (Large loop trigger guard for gloved hands). Sounds like a keeper. And yes, it will shoot .45 Colt.
By the way, value in 50% condition is about $1000.