Buck shot does work but is not a nock'um down killer even at shorter range. Killed a couple 30,35 years ago in florida with a tight shooting 12ga at close range. Still had to hunt them up as they ran a ways before die'n .Modern heavy weight slugs will do the job out to 125 or a bit more and farther with the sabots with the rifled barrel. Have any of you seen or tried these- Products A hunting buddy used a dupo 20 in his 20ga slug rifle to take a 170lb doe this year and one last year. Devestating damage from it and can shot 3" groups at 100 yards out of his H&R slugster.