I spent some time doing a kind of Mozambique Drill with my single action Thunderer. Two to the chest and one to the head pretty much as fast as I could cock, fire, cock, fire,.... Range was 21 feet, and the silhouette is about 2/3 the size of a full - sized target.
The really odd thing about the target, though, is the fact that it has seafood recipes printed all over the front and back..... Don't know what's up with that but they sounded pretty tasty :)
Have I mentioned how much I love this gun? :)