Try a cross-check for Model 100 mounts
I don't have time here at work tonight to verify it but I would bet that the Winchester 88 and 100 use the same bases. I would check to see if anyone makes a picatini(sp) base for the model 100 that offers more options in scope ring placement. When these rifles were made alot of the scopes had long tubes with small objective bells or none at all. I too need to bring my scopes back for me to comfortable with them.