here is my problem (one of them at least): I have a 300 WSM in a Tikka and topped w/ a Nikon Monarch 5.5-16.5 x 44 AO scope. The scope only has 40 MOA and I would like to be able to shoot out to 1000. THe max range to sight in w/ this rig is only 820 yards ( and that is topping out the scope which I don't want to do). I tried to shim the scope under the base on the Weaver style Tikka factory mounts using 3 slivers of aluminum pop can giving me approximatly 15 MOA lift. I started shooting at the range only to find that the shimms were slipping out after only a couple of shots. Does anyone have a better Idea for the mounts, or a better way to shim a scope. I don't know where to find a good mount for the Tikka T3. Thanks in advance for your advice. Mark.