Greetings from Canada, Its cold outside. Sako/Tika make mounts with a Plastic/nylon insert which takes the stress of the scope. These inserts work as a swival in the mount and will not allow any movement from the largest mag. shells.
Burris has a similar set of mounts which work just Excellent on all weaver type mounts. Burris also have optional ring inserts which can be purchased in 5, 10 & 20
1000's" this will allow the shooter to shim a badly aligned base or just shim for those extra long shoots.
I own both Tika & Burris both are great.
Hope this helps