S&W 66: More RBs or FBs?
Given two guns of identical age and condition, is one with a round butt more or less valuable than one with a flat butt?
Generally, the fewer guns made having a particular feature, the more valuable guns having that feature become. For example, a 3" barrel on a S&W M19 is (I've been told) more valuable than an M19 with a 4" barrel.
With a model 66-3, does this concept extend to butt shape?