I have a Smith and Wesson m48 22 mag that I would like to put a scope on. It had an old 1.3 power Bushnell on it but I need to find some bases so I can mount a better scope. I am not having any luck finding them so thought I would ask here, where should I look? This gun is from the late 50's or the 60's and the only holes are from the iron sights. It may need to be drilled and taped.