I’ve just recently been messing around with AB Quantum since Strelok lost support.
When putting in a zero offset it seems the L/R is backwards. If my zero is 2” high and 1/2” left at 100 yards my offset would be +2” elevation and -0.50” windage. When I put in these values into AB I end up with results showing an impact at the correct elevation but 1/2” right instead of left. Anyone else notice this or am I just confused?
Edit: adding a few screen shots showing offset in profile, resulting range card and reticle which provides a good illustration. Definitely looks like the zero offset is reversed, at 100 yards the shots should be left of center.