I have shot a buckwacka for about five years. This is a great gun, with excellent accuracy. I shoot 100 grains of powder with a 45 cal. Saboted pistol bullet. I believe it is 245 grain bullet. I have shot a dozen or so deer with it. It's sighted in at 150 yards. I have not lost a deer since starting shooting with this gun. I use a number 7 shotgun primer instead of the 9. Just gong that has increased my accuracy greatly. I have shot deer as close as 100 yards all the way out to 320 yards. I love this gun. The reason i can make these kinds of shots is the fact I practice shooting a lot and know my gun inside and out. Certain. Bullets like to tumble so make sure u paper test your shots to fine tune ur bullet flight. Over all I like this gun more than any other deer gun I own. Good luck and ensure u practice, practice and practice know your gun. Always run a wad down the barrel every three rounds to clean up ur rifling for best results. Happy hunting