This mount fits:
Ruger No.1 B Barrel Contour
Ruger No.1 S Barrel Contour

We have found that Ruger No. 1's with 24"-26" barrels typically came with B or S contour barrels. Guns that came with shorter barrels typically came with A contour barrels.

We have also found that guns in certain calibers have the holes in different locations.

The recoil pin hole location on your barrel may be different from the recesses drilled in our mount. Ruger may place their recoil pins in different locations for different calibers. Our mount will still function properly with just the rear recoil lug and the mounting screws. Our mounts are designed to use the mounting screws as the primary recoil lugs.

Rail Type: One Piece Picatinny
Machined From: Solid 7075 T6 Aircraft Grade Aluminum
Finish: Matte Black Hardcoat
Center Spread: 3"
Overall Length of Mount: 7.458"
Height: .35" (Top of Receiver to Top of Picatinny)
Weight: 2.5 oz
Ambidextrous: Yes
Compatible with Picatinny or Weaver scope rings.
Mounting Hardware: #8-36 X 3/8 Flathead Screws and T-10 Bit Included
Torque Specs: 20 in/lbs

The recoil pin hole location on your barrel may be different from the recesses drilled in our mount. Ruger may place their recoil pins in different locations for different calibers. Our mount will still function properly with just the rear recoil lug and the mounting screws. Our mounts are designed to use the mounting screws as the primary recoil lugs.

This scope mount fits the Ruger No. 1 with the "B" and "S" barrel contour.
 

Mounting Hardware is Included

This mount fits:
Ruger No.1 B Barrel Contour
Ruger No.1 S Barrel Contour

We have found that Ruger No. 1's with 24"-26" barrels typically came with B or S contour barrels. Guns that came with shorter barrels typically came with A contour barrels.

The recoil pin hole location on your barrel may be different from the recesses drilled in our mount. Ruger may place their recoil pins in different locations for different calibers. Our mount will still function properly with just the rear recoil lug and the mounting screws. Our mounts are designed to use the mounting screws as the primary recoil lugs.