Hello all, I have the above referenced firearm in .338 caliber. The rifle is equiped with front and rear sights.I would like to mount QD rings/bases. Anyone with experience know if a Leupold Vari X 3 3.5x10x40 will clear the rear sight? Do I need low or medium height rings. Does the rear sight have to be removed ? If the rear sight has to be removed I will not use QD rings/bases. What about a Leupold Vari X 3 2.5x8x36 will this be a better set up with the iron sights ? Thank-you all in advance for your anwers.