It's the Big Bully thundering down the lane! Get out of his way. Quick! Make no mistake. Big Bully is Columbia 300's latest and greatest high performer. The best of the best. Rigorous tests have proven it to be the most powerful ball on the market today. The combination of our M80 coverstock and the low RG (2.48) and medium differential (.45) mallet core gives you real BULLY power. And Big Bully is in good hands with Team Columbia member, Wes Malott. His choice of balls? Only one. Big Bully. Look out, PBA! Big Wes and Big Bully are on their way to the top!