Way heavy and over built IMO. Their original Len Brownell design were sleek, graceful and beautiful. Sometimes come up on EBay but typically sell for lots of these$$$.
I use them on several of my White Whitetails. Have the Weaver bases on the rifles that I can leave on, and shoot open sights over the bases or put either the Warnes or Burris Z-Ring scopes on. The QR rings return to within 1/2" MOA consistently
If...…….. you're in no hurry for QR rings, I have a set of 30mm you could have if you thought they'd work. I'd have to wait until all this quarantine stuff is over before mailing them. Just thought I'd offer.
QRW2s are nicer rings than the Warnes and similar cost. Just not a fan of the single top screw design. Personally a little lever to release rings does not mean much to me. What i want is a ring that returns to zero very well. You wont get that as well using a Weaver ring on a true picatinny base. My Contessa rings use the same torx for the base as they use for the ring caps. Its a tiny little torx so a non issue even in a possibles bag.
The ring base is .250" thick. What are they to scope center FROM the base? It was listed in their catalog. The new Warnes Horizontals are an option too.