I have the 3.5x10x44 sitting on a 300 Weatherby Magnumb. I don't have many shots fired on this combo yet. The scope is clear and bright. Just as bright as my Nikon Buckmaster. It performed well during my sight-in session. The sight in session was done during a dark, nasty, rainy Oregon Monsoon/snow/hail fest in the mountains.
The scope and gun got soaked. Shot itty-bitty groups anyway. No ill effects. Plan to get another Mueller for the Tupperware Special.
ZM