I have 3 muzzle loading shotguns and as Cayugad told you ~ tons of fun to shoot! My go to gun is a Pedroselli side by side 10 Ga - it is light wt and really no kick at all. I have shot grouse, pheasant, quail, ducks, and geese, as the bore it is chromed for steel shot. I shot my 3rd turkey on my 40th with my Great Grand Daddies 16 ga side by side.
Recently I purchased a 12 Ga White BG Series Tominator which is a single shot inline. I have yet to develop a load for this and am working ordering some components. This gun will be used to "Smoke" some turkeys in 2013!
JW