Re: Best method or system for leveling a scope???
Before going to the range, I lay my rifle with scope loosely mounted in my cleaning cradle. I eye
ball line up the field of view and get the reticule as square as is then possible. Tighten the ring screws down so that the scope can barely be rotated. Get two small bubble levels, place one on top of the elevation cap. The other I glue to a popsickle stick, and hold it under the stock. This is easy with a flat fore end. On a round fore end, I try to bridge it across the loading port.
Now, find a carpenters square, a 4' cord and tie a weight (I use a large washer) to the string. You might also need a 6" clamp and a small piece of wood, about 1"x2"x15". Head to the range and attach the clamp and piece of wood to the end of a 50 yd. target backer. Tie the plumb line to the wood. Sit rifle and scope in a solid rest at the bench. Use the carpenter's square from 12 to 6 o'clock on the recoil pad to get the rifle situated level. Line the reticule up with the verticle string. Rotate scope in direction for the verticle reticule to match the string. Tighten ring screws, re-check, and shoot at 50 yds., then 100 yds.
To verify, shoot a box at 100 yds. If your scope has 1/4th min. adjustments, fire first shot at one corner of a 1" square, move the adjustment right 4 clicks, shoot again, then down 4 clicks, fire another round, then left 4 clicks, take another shot, and finally, again fire at the first corner. If you have done your job correctly, the first and fifth shots should be one hole.