There seem to be windage issues on many scope mounts allegedly intended for AR picatinny rails*. In the first photo, the objective appears to be visibly higher than the rear. If that's the actual case, there's no way you'll get that to sight in.

I installed a similar mount on a friends rifle and the windage is way off on a boresight attempt. Didn't mess with the adjustment screws, but I doubt it will sight in.

A different mounting system on another rifle needed to be flipped to get the windage correct.

You might try a set of extra high rings to see if they'll line up better. Burris signature Zee rings use offset inserts to allow you to correct for windage/elevation errors. A ring kit (around $14) gives you a maximum of 30 minutes of correction.

*Actually, the problem may be that the mount was for the Weaver bases and they didn't cut them to allow for the extra material on the top of a Picatinny rail.