DJ, I have killed many deer with a smooth bore shotgun barrel. That's all we can use in Allegheny County for deer. A 12 gauge slug, bust's them up. If you're close enough to a bear to shoot with a smooth bore it will do the job. They are however, not very accurate. Now I shoot 12 gauge sabots. Much more accuracy. Dick's sporting goods usually sells Hornaday (spelling) sabot slugs, 300 grain, for about 12 bucks a box. A little more money but well worth it. I'm glad I went to sabots, now I can reach out and touch someone.