Winchester Blind Side Steel Hex High Velocity Loads 20 Gauge - Case. Stacked Havoc, 15% more pellets. This packing density allows more room for powder charge to deliver increased velocity. A Traumatic Difference. Designed to hit waterfowl like high velocity tumbling bricks creating massive wound channels and delivering 250% more trauma. Diamond Cut Wad Increases your kill zone beyond the Golden 30 inch sweet spot by 25%. Keep Your Powder Dry. The New Hinged Wad reduces peak pressure, increase velocity and reduces perceived recoil.