The Caldwell Lead Sled revolutionized shooting rests over 20 years ago. These sturdy rests hold the rifle steady while using the included weight reservoirs to eliminate almost all felt recoil. This means you get sighted in faster and more precisely without developing bad flinching due to recoil. The Lead Sled 4 is the latest version of this classic shooting rest, starting with a new frame design that relocates the tube below the weight tray for improved clearance for detachable magazines and lever-action firearms.