I like Leupolds and have faith that they will stand up better then other scopes. But I have used an old El Paso 2.5 Weaver for many years on all kinds of rifles, including my 45-120, without complaint.
'scopes is like wimmins, they's a bunch out there, good and bad, so you just pick out one you like and takes you chances! ;D Hi-ebber, and day always be a hi-ebber, if you picks out one you meet in the red light district, chances are it ain't gonna be as reliable as one you meet at prayer meetin'!

That may not always be true, I'm jus sayin...