weaver rings - anyone got any lying around?

Hi looking for some weaver style rings for he old 303. The original gun smith did a crap job of mounting the original rings to the base he put on. NOw when they fit properly the scope is too low for bolt entry.

So, looking for :
sure grip or quadlock in "medium". I think I think they will be high enough but I'm not really sure.... anything else in the right heigh I'd be keen to consider. She's a bit of an heirloom piece but not really a fantastic rifle.


The tactical mediums are going to be too high.