What are these rings for

[Bfranklin]

I believe they are Sako Optilock,

Please let me know what specific rifle they are for, as I intend to sell them.

 

[Blastattack]

Optilocks look absolutely nothing like that. They’re Leupold/Redfield style mounts.

 

[skwerl]

What diameter are the rings (mm) & what distance centre to centre are
the screw holes on the bases ?

 

[chappy]

possibly leupold for a rem 700.

 

[double gun]

Leupold, and yes for a Remington 700 as marked.

 

[Potashminer]

If they are by Leupold (a reasonable guess) they would be called 2 piece STD bases and rings. Front ring "turns in" to front base; the rear ring held captive between two windage adjustment screws. As was mentioned, also made by Redfield - I have had some by other makers as well - Millett, for example. Rings from one maker often work on bases from another maker. Those bases will be very specific for a specific make/model of rifle - hole spacing, and height of the bases from top flat to the curve of the receiver. The rings will be defined by how high to bottom edge or centre of scope tube, from top of base, and then by the diameter of the scope it is made to hold - 1", 26mm, 30 mm, etc. all were common at one time or other. When new, the bases would have come with the attaching screws to fasten to that particular rifle = often 6-48, but sometime 8-40, depending on make and model of rifle.

 

[Bfranklin]

Thanks guys, it appears they are indeed Leupold.

 

[remington jim]

Leupold, and yes for a Remington 700 as marked.

Winner ! RJ