ORIGINAL: game4lunch
Mounted a Bushnell Sportview on a new .243 for my son today, and when we went to bore sight it (laser), we had to bottom out the top adjustment and the laser dot was still way high at 100 yds.
So we took the scope off, put a couple pieces of electrical tape for a shim in the front mount, and got close anyway. Shootable anyway.
What could have happened?
Had no problems with the scope on the previous gun.
Brand new Savage model 10.
How do you fix it properly?
The way you described it ("bottom out the top adjustment") I assume you mean the scope's elevation knob was adjusted DOWN as far as it will go, but the rifle still shoots too high?? If so, this is a MOUNT problem, NOT a scope problem! The rear ring is too low. You need a ring in the rear that will permit the scope to point lower on the target. Or, you can put a shim in the bottom half of the rear ring until the scope points further down on the target. (This is a very common problem these days, it seems)
IFwhat I described is just the opposite of what you're experiencing, then you need a shim in the FRONT ring under the scope tube. I cut my shims from beer cans with a pair of scissors. Use however many thicknesses you need to get a little latitude in the elevation adjustment so yoiu can accommodate various loads & bullet weights.....
As the fellows above mentioned, this may be solved by such a simple measure as swapping the front & rear rings-depending on what kind of mount you have, of course....