I've used those "Tip-off" mounts for a lot of years, & on a lot of rifles including a 760 - 30/06, & never had a problem with "zero". I was told that I would, on the first rifle I put them on, but a really excellent local gunsmith at the time told Me not to pay attention to them. Just be sure the contact surfaces are free from debris before swinging the scope back into position. I never made it a habit to swing the scope off & on for no reason, but considered it a "safety net", if "I" happened to fall, or bang the scope, during a hunt ! I Always made sure the open sights were aligned properly, along with the scope.
You should try a 760 in 6mm Rem.. Absolutely the nicest, easiest shooting, & possibly the most accurate 6mm I've ever owned. Outstanding !!!
Again, contrary to popular opinion, one of the best calibers out there for everything from Varmint to Whitetail size game. In 50 years of hunting, I have never had to fire a second shot at anything I've decided to take down with any of My 6mm's.
Jim I just sent you a PM about a box of 6mm ammo I had laying around with no home...
How do you guys like this old box. My dad pulled this out of his gun cabinet a while back, they came from my Grandpa's house when he passed, but were not sure why he had them. As far as we know, he never had a 6mm. Only 5 out of the box, and these are OLD.