My best friend just gave me a great gift, a BSA Sweet 22 scope. I would like to mount it on my Romanian Trainer. Upon measuring the groove on top of the receiver, it looks like a normal 3/8" rimfire base is going to be a little too wide. I could drill and tap for a weaver mount, but I'm a little hesitant to go modifying any military firearm, even though this one only cost me about $45. I've also thought about modifying a set of standard 3/8" rings to fit on the groove of this rifle. Just thought I would ask here in case anyone else has done this.