I have a Sightron II that won't hold zero. Originally mounted
it on a Sav M10, 308 Win. for match shooting. The bullets went
everywhere except on the target. This was before I started taking
a closer look at the Sightron. Called up Sightron and got a bunch of nonsense that my bases were the problem. Can you believe it? Anyway, got the scope back from Sightron NOT FIXED!

Of course I didn't realize at first. Mounted it on a Mauser M96,
6,5x55mm rebarreled by PAC-NOR. Needless to say it went south during the sight-in period. Replaced the scope with a Bushnell 3200, 10X, with mil-dot and immediately got on paper. Fine tuned
it, and the whole set-up shoots excllent groups for the matches
I compete in.

The Sightron II scope is setting in my reloading room. Can't bring myself throw it away; I spent too much money for it!