HI, i have a burris signature 6x-24x 44mm scope on a remington 700 vssf 22-250 rifle. My problem is that i can not get the crosshairs lined up with the bullet placement. It is shooting too low on paper (about 6" -7" low at 50 yards) I can not get anymore vertical adjustment. Has anyone else ever had this problem, or offer any solutions besides buying a different scope. thanks also the rings are medium size so the scope can not go any lower...thanks.