Caldwell Tack Driver Shooting Bag - The Caldwell Tack Driver Shooting Bag is the most user-friendly and effective one-piece shooting bag available. This convenient shooting bag takes the place of two. You can use the Tack Driver almost anywhere from shooting benches to makeshift positions in the field. Self-tightening surface grips your rifle and reduces felt recoil Non-marring, non-slip surface will not harm your rifle's finish Supports almost any rifle or shotgun type