The Rossi Ranch Hand holds six rounds in the tube + 1 in the chamber.
You can get one of these in 45 colt, .44 magnum or .357 magnum.
If you must use a rifle for home defense and AR's have been banned in your state, consider a rifle that uses handgun ammo.
http://www.rossiusa.com/product-list.cfm?category=17
If you are a resident of the state of New York, the number 7 is relevant because that is the number of rounds, deemed by Emperor Cuomo, as "safe" for his subjects to have loaded in a firearm.