I find my lowest prices for factory 5-rounders at local sporting goods stores. Saves on shipping costs too.
Most good stores will have them --depending on your location of course. I don't know if you have Gander Mountain where you are, but they sell them for $15. Some True-Value Hardware stores have them, or even Fleet Farm.
Most of the factory Ruger 5-rounders I've seen on the internet are going for approx $20 + S&H. The amount you could save in shipping by going locally will add up quickly.
You will find them just about anywhere Mini-14s are sold. If you are unfortunate enough to live in the People's Republik of Kalifornia, you may have difficulty buying locally.