chuckie g.

Rifled slugs will achieve rotation in the barrel as you indicated in your question. A rifled slug barrel will generate more rotation and therefore obtain better accuracy out to 100+ yards. Ballistics experts opine that the rifled slug in a smooth barrel can only obtain XXX rotations during its travel down the barrel but the rifled slug barrel will spin that slug, rifled or not, much more aggressively (and effectively) down the barrel.. More spin equals more accuracy. Many hunters favor slugs fired from a rifled barrel over sabot rounds. Besides the higher cost of sabots, slugs are much heavier and deliver more knockdown power than sabots, which tend to "punch straight through an animal without much tissue trama". One hunting expert tells of hitting a 165 pound derr with sabots three times and the animal continued scrambling away. That deer was recovered after many hours of tracking.