[Jeff Higgins]

Supe, heavy bullets shoot higher. Your single action is meant to shoot 250 grain slugs. A little more recoil, and a little more barrel time, mean the muzzle is a bit higher in recoil when the bullet exits the muzzle. This results in a higher point of impact.

I have never understood unfinished stainless steel front sights. Probably the absolute worst color imaginable. No contrast against any sort of a backdrop, and almost impossible to see. Do yourself a favor and paint it. Rough it up a bit first. I like hi-vis orange, like your construction crews have to wear. Some like white, especially for hunting in low light conditions in the deep, dark woods. If you want orange, paint it white first - most "safety orange" is so thin and translucent that it will not cover darker colors.