What rifle is this for?
I have just the one ring brand new, 5B30HM. It’s matte blue 30mm. If you could find a 4B30HM , that would make a medium set for a Ruger M77
I am mounting a scope on a River No 1. Need 2 the same height. I have acquired one No. 4 blued 30mm. I now need one #4 ring blued.