It worked!
Following the directions given by Bushnell Customer Service I heated a screw driver blade of the right size to the point the blade started to turn red. As soon as I spotted the discoloration I remove the screw driver from the heat.
I had my rifle with the scope setting in a rest. I centered the heated screw driver on the top of the screw. It took a second for the blade to heat the top of the screw and then I had to stop it from over penetrating the screw. I held it in place a minute or two and then stepped away for about five minutes letting it cool.
When I applied turning pressure to the screw driver I could feel resistance and I heard the first click as the elevation changed one click. There is a shallow grove across the top of the adjuster in which a coin can be used to turn it when the hole for the screw is not occupied. I tried with little success of holding the adjuster in the lip of the shallow groove with a second screw driver.
The adjuster clicked a second time and I felt the screw give slightly. On the fourth click the screw came out. I gained one inch of elevation in the process. I adjusted it back four clicks.
I had dug out the original box the scope came in and it contained the manual and the other dials that came with the scope. It came with a #1B, #2B, and a dial the user can customize for his load.
When I first purchased the 243 rifle I was loading 100 and 105 grain bullets and shooting 100-grain factory ammunition. According to the manual the #2B dial is for the 100-grain bullet. Along the way I decided the 243 Winchester would be used for varmints and I would load a 80-grain bullet to about 3200 fps. The 80-grain bullet has proven to be devastating on critters.
I did not go back and read the manual and switch to the #1B dial. In recent years I made a few notes about the difference in the point of impact between the 100 and the 105 grain bullets compared with the 80-grain load.
Until recent complications I had planned on doing a little deer hunting with the 243 Winchester using the 105-grain Speer Splitzer. I have a limited supply of these bullets because it appears Speer has dropped it from the line up. I have also developed accurate 100-grain bullets so the shortage is not a life threatening event.
Recent range sessions show the 80-grain load shooting way high at 200 yards but no windage problem when sighted in for the 105-grain load. I held the #1B and #2B dials next to each other today. It appears that switching dials to fit the bullet wieght might accomplish what I want. I need to test this on the range.
Has anybody tried this? If so what were the results.