Normally i would say go to the range and try a few and see what flies best but its a little late .go to the shotgun section and look around this topic about slugs has been done before .Ya really should have the gun sighted in by now thats my opinion
Now therefore take, I pray thee, thy weapons, thy quiver and thy bow, and go out to the field, and take me some venison.
Genesis 27:3 "The thinking deer hunter should mature through three phases during his hunting life. First phase, "I need to kill a deer." Second phase, I want to harvest a nice deer. And last phase, we must manage this resource so our children and their children can experience the grand tradition of good deer hunting." - Jim Slinsky