Does that scope have click adjustments? I don't think it does and the way I use target knobs is to just count the clicks. I don't even look at the scope but keep my eyes on the target. It's the same with target shooting.
Also the Leu. tactical knobs on the 4.5 X 15 Tac. that I have are way too big. They stick way out and look silly. Some other brands of scopes have smaller finger knobs with clicks like Sightron. That's what you want.
