USED - Bowling Ball - 15lb Columbia "PIRANHA" - DRILLED WEIGHT 14lb 11oz
ACTUAL DRILLED WEIGHT - 14lb 11oz. The core is a dynamic two-piece core with the PowerCOR ball inside and has a high differential for more flare and hook. COLUMBIA 300 - PIRANHA. Here's what Columbia 300 has to say about Piranha PowerCOR.