I had that exact scope in mark 4. it was the LRT model. It was the latest dual spring model. That scope gave me fits for a long time. I also put it on a rifle that was capable for .25 moa. believe me when you have a rifle truly capable of that it will expose scope flaws. The scope held zero just fine if you didn't crank the turrets, however everytime I rechecked zero after using the gun my zero would be off both windage and elevation. The scope even had a trip back to leupold to fix it.
for those that say leupold's are great and track just fine, go try a nightforce and get back to me. I will never trust another leupold on a long range setup. in fact when I get a tad more money my last leupold will be sold and upgraded to something else. If I needed a scope like your looking for I would get a vortex, if you swing more money maybe a huskemaw or even better nightforce.
....or just upgrade to a SWFA SS.
