I don't think that they are moving inside the turret...But you can try shooting a square...It will take some time with a ml, so I probably wouldn't try it, btw I have had guys have good luck with the Prostaff...To check how a scope is tracking, here is what you do....

1...Zero the gun...say, dead on at 100...

2...Move both horizontal and vertical adjustments....Say 8 clicks up and 8 clicks right (this should move the group 2 inches up and 2 inches right, if the scope adjustments are 1/4 inch per click at 100)...Then shoot 3 shots....

3...Go 16 clicks Left...Leave the horizontal alone....This should put you 2 inches high and 2 inches left of your original zero...Shoot 3 shots....

4...Go 16 clicks Down....This should put you 2 inches low and 2 inches left of your original zero....Shoot 3 shots...

5...Go 16 clicks Right...This should put you 2 inches low and 2 inches right of your original zero....Shoot 3 shots....

6...Go 8 clicks Left and 8 Clicks Up....You should be back at your original setting or sighted back in at 100 yards....Shoot 3 shots....

This is called "shooting a square"....You should have 6 shots in the middle and 3 shots each in each corner of the square...Make sense???

As I mentioned...I wouldn't worry about doing all this with a muzzleloader...Just get her dialed in....I would check it a time or two before the season to make sure she stays put...If the scope still acts funny, I would put another on this gun and shoot a square with a center fire (or even a good .22) to check its tracking....