I've found these to be great scopes. My one concern however is that if I remember correctly (and I may not) the eye relief isn't any to great and coupled with the difficult mounting position of a scope on a No.1 (I've never been a fan of offset rings) this combination might be hard to pull off properly. I'd compare the physical dimensions and eye relief on a scope you've had good luck with to those of the S&B model you want to use. Better to check than find an issue if you also don't like offset rings. Good luck, Ed
