For my center fire rifles I use a Burris Signature 6-24X or a Burris Signature 8-32X with a custom fitted fine cross hair with a 1/8 minute dot overlaying the crosshair intersection.

The old Burris Signature series have 1/8 MOA adjustment target knobs and a twilight aperture which I open on dull days for a crisper sight picture.

I have a Weaver T36X and I like the magnification but it really lacks in clarity.

I also have Bauch & Lombe 6-24X and 8-32X scopes but the cross hairs are too coarse and the clarity and sharpness is not as good as the Burris. But much better clarity than the Weaver. I use them on my rimfire rifles.