The Revolver utilizes ConneXion Grip an improved version of ConneXion coverstock. ConneXion Grip incorporates a new formula to increase the footprint size of the coverstock which improves midlane and backend traction. The Jack core was designed as a Low RG symmetric core with a high differential. The Low RG engages in the midlane assisting in ball motion, and the high differential increases track flare potential giving the ball more opportunity to grip the backend while using standard layouts and interchangeable thumb sleeves. With its 4,000 Siaair Micro Pad finish, the Revolver will provide good length with a strong continuous backend reaction that matches up on medium to oily lane conditions for a wide range of bowling styles. The Revolver can be drilled using the standard drilling techniques developed for symmetric bowling balls. The unique core shape of each Brunswick ball is used for weights from 14 to 16 pounds. This approach to lightweight ball engineering provides bowlers with consistent ball reaction characteristics across this weight range. The same drilling instructions can be used for 12and 13pound balls. This is because Brunswick uses a generic core shape with an RG differential that is close enough to the 1416 pound shape.