Element scopes are quite famous for perfect "tracking of the reticle" for repeat tracking over and over. I don't know how big a gun(recoil-wise) they are recommended for, but do know of them being used up to .260Rem., which of course is mild recoil. Guys are using them on higher quality air rifles for shooting vermin and pest birds out to extended ranges, like 180meters with pellets and well as slugs started below the speed of sound. We're talking about excessively high trajectories with perfect tracking of the reticles. Even the least expensive one at $450.00 cdn. has perfect tracking. Of course these scopes are primarily for turret crankers.
-------------------- Daryl
"a gun without hammers is like a Spaniel without ears" King George V