In order to solder anything onto a Snider rifle barrel you have to use silver solder, which is a much more tedious business. If silver solder is done by someone experienced with it the base would NOT come off. Most scope bases on a rifle barrel are screwed on but the Snider barrels are not thick enough for that. Maybe try a red dot type with a single base on the receiver ring. My old eyes don't like iron sights any more either but I can still put five round balls in an 8 inch circle at 100 yards with my Snider. I had the "LensCrafters" do me a set of glasses with a focal distance of 24 inches so the front sights would be crystal clear and it helped immensely. Good luck, Dave