I just got a build finished and am having a hard time finding scope rings to clear the objective. I have a Nikon Monarch to start out with and it has a 50mm objective. The rifle is a 22-6mm with a Shilen straight blank ~1.250". Without blindly buying scope rings and "trying them on", I figured I would ask the experts. Does anyone have experience with saddling a scope with a similar obj. on a straight blank?