scope mounting problem
300 RUM sendero. scope, nikon 6 x 20 x 44 monarch. burris double dovetail mounts with posi align inserts. problem, doesn't have enough windage adjustment. we started with +20 (bottom) and -20 moa insert in the back ring. it didn't have enough elevation adjustment to get on at 100 yards. so i put +5 (bottom) and -5 moa in the front ring. got some elevation adjustment but was shooting way off to the right. couldn't get enough windage. i know each adjustment affects the other if you get to either max adjustment range. if i had it turned right all the way i would loose some elevation adjustment. so i took the +10 and -10 moa inserts and put the + 10 on the left side and -10 on the right side, so as to give me some windage adjustment in the front ring (i still had the +20 in the rear bottom. i was able to get it on at 100 yards but only had 5 MOA adjustment to the right, it wasn't close to center. i'm going to buy another insert kit and put the +20 on the left side and -20 on the right side in the front ring. the mounting holes for the bases must be way off is all i can figure. am i going about this in the correct manner? once i get it on at 100 yds. is it going to line up at all ranges?