Hi there, I'm new here also. I have the T3 in .308. I mounted a Nikon monarch 3 (2.5×10-50mm) on it using the game reaper mount (medium height). I have about an 1/8″ clearance between the objective and barrel. I really like this mount compared to the two piece Luepold set I had, had no confidence in the alignment. The game reaper is rock solid and has performed perfectly.