I have 15 big game rifles & have just about any mount you can name on at least one of them: Sako Opti-Loc, DNZ, Warne, Talley, Redfield/Leupy, Burris, Weaver etc... The only system I refuse to use are the standard Redfield style that utilize the rear wind age bolts to attach the rear ring. I've had those come loose enough that I switched everything to dual-dovetails, Weaver style, Leupy quick detach (on my muzzleloaders particularly) etc... For your 742 the basic Weaver setup is fine & if you aren't 100% sold on them then pick the Weaver Grand Slam rings as they are steel. I've never had a problem with any of my Weaver styles, I just assemble them properly & use blue Loc-tite!
Last edited by HatchieLuvr; 08-24-2015 at 06:59 AM.