Free: Contests & Raffles.
Well if you carried two That is what you would call a great speed loader.
All I can picture right now is that scene in The Patriot where Mel Gibson kills the entire British unit on the trail after his son is murdered by the Colonel. Aim small, miss small!
I could see where it might actually be useful to have two, if you were in a small ground blind, where it might be hard to get a second shot loaded quickly if you needed it. Maybe?