Umm I'm inclined to say that they are much better mounts than a Weaver style (strong, attractive and windage adjustable). But that's showing my age and prejudices.
Leupold or Redfield perhaps, both use the same system.
Looks like Leupold to me.
T T Proctor, a real Gent, & a Highly skilled craftsman, wonder if he's still working ... Remember his tiny little workshop hidden away in Wilmslow.
(The Unspeakable In Pursuit Of The Uneatable.) " If I can help, I will help!." Former S.A.C.S. member!
Leupold with rear base having windage adjustment to give full functionality to your scope windage adjustment.
Leupold turn in mounts
Thanks for the replies gents. I think Leopld do QD mounts.
Leupold does two styles of quick release mounts:
1. QR, which is their bases with a socket and lever on the base.
2. QRW, which fits a Weaver, Warne, Picatinny, or Leupold cross slot base. Those have the lever on the rings.
The QR are nice and slim. The QRW are heavy steel and stout. I have used a set on a .375 H&H. No movement and back to zero, on and off.
Thanks Southern, I must take a look at their website.
Have a look at my previous thread 'what mounts are these'