Yes the scope is very important, however scopes are a personal item, what suites one person may not work for another. Some like just a fine cross hair while others like a fine cross hair with a target dot, and some like tactical reticules. The amount of light that the scope gathers changes from shooter to shooter. A good starting point would be something like a Weaver T36, or a Sightron benchrest 36 power scope (others are available). The best way to find this out is to try other people’s scopes or attend a shooting show and visit the scope manufacturer’s stands.