Rule of thumb when mounting telescopic sights on rifles:
"use the lowest set of rings which will permit the scope to be mounted as close to the center line of the bore-line, without touching the barrel or interfering with proper function of the bolt"
on either of those scope objectives (40 / 44 mm) i would start with the low rings. If that is not enough height, then return those & install a set of medium.
Guru1911----"installing scopes, rings, & bases since 1974"