But, the big difference is today we have good medical care.
What exactly does this have to do with killing a deer? A dragoon revolver is more than adequate for a deer. Look around, people kill them with Remington replicas. A dragoon carries a much bigger powder charge than a remington. People also use .45 colt handguns for deer. A full 40 grain load in a dragoon mirrors the original BP load for a 45 colt.