Here is a Ballistics Calculator that will help you know what your bullet will do when you pull the trigger. A moose needs 2200 lbs of energy to take him clean as was posted on this forum and I use that to find my max. yardage for my gun, bullet choice. Plus, you can compare differant caliber and bullet weight. Just use your reloading manual to fill in the blanks. Is fun to see what is going on before you pull the trigger. Have fun!