I have never listed a bullet specifically for any gun, but make each mold to customer spec. This means you have many options for your Ruger, including the authentic Keith bullet developed for the old Colts etc.
Regarding accuracy. Because LBT molds are tracer lathe bored, they produce the most precision bullets you'll get from any mold, and they are cut to the optimum diameter for your gun. These two factors coupled with the fact that all LBT offerings are designed of optimum accuracy, you'll get the best accuracy your gun can deliver from any mold when you choose an LBT bullet mold. All the designs in my catalog were designed by myself except the Keith, which is just his design as exact as I know how to make them working from available old samples. I offer these for people who want HIS bullets, and offer modified spinoffs of his design for calibers which Elmer didn't design bullets for.
Measure your gun, modify it slightly if measurements dictate doing so, and get an LBT mold. It will shoot better than you ever dreamed it could.