The Winchester Segmenting Slug is made to be an ideal round no matter how the situation unfolds. When fired into bare light cloth or heavy cloth, the distinctive slug design segments into three pieces, causing multiple wound channels and increased trauma. This segmenting action also reduces the risk of overpenetration. But when faced with hard barriers such as plywood, car doors, or drywall, the round behaves like a traditional slug with maintained integrity and full energy on target.