I have the same rifle and went to an XS sight. Started with an NECG ghost ring that fit in the scalloped scope base slots but it hung out over the sides too much for my taste, just too big and boxy looking on that slender rib. The XS is a touch wider than the rib but not by much. Both of them needed a taller front sight but the XS came with one the correct height.

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Pic of the front and rear sight. The front is definitely tall but the No. 1 comb is made for scope sights so with the taller rear sight you can look through the sights without having to really scrunch your cheek down hard on the comb.

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I went with a Skinner on the next No. 1, a 1A in .250 Savage, and really prefer it over the NECG and the XS on this model. It blends in with the rib nicely and is still high enough to use with a comfortable cheek weld. Fwiw the NECG sight is a great fit on the Ruger 77.

Link to pic on Skinner web site





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