Tominboise, check the very bottom of the FA website page, factory installed options. They sell a 480 Ruger cylinder for the 475 guns. I think the idea is that you would get it as a second cylinder, but you might call them and see how much it would cost to have a 480 Ruger instead of a 475 Linbaugh. My personal feeling is, if you are going to spend that much cash, get the way it suits your needs. If you know you will only shoot 480s (and especially if you dont reload) get the gun in 480 Ruger. If you do reload, get the 475 and follow MS Hitmans suggestions for light loads. Of course, option 3, if you have spare cash, is to get both cylinders, cover all bases, and have a really cool gun!!