Great explanation and photos. I'm working on a savage piston with Williams rear sight and a barrel band front sight. Is there a way to estimate the front sight base height. The barrel has a 3" straight .750" dia at muzzle, and is 15" long. Probably go with a Lyman front globe sight. This isn't a rimfire, but the fitting method is the same.

I figure to mount the rear sight, adjust it close to the middle of the range. Put the band on the front and figure a base height by trial and error. There must be a way to do it without buying 4 bases.

This is on a centerfire .223 cal model 12 left hand action, the rear sight screws to the base holes on the action.