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Compare bowling balls

Core numbers are compared in one weight. Some brands only publish them for one weight.

Weight Pick other balls
Hammer Black Widow 3.0 Hammer Black Widow 3.0 Hammer Black Widow 3.0 Dynasty Hammer Black Widow 3.0 Dynasty Roto Grip Perfect Gem Roto Grip Perfect Gem Track Paragon Fire Track Paragon Fire
Brand Hammer Hammer Roto Grip Track
Line Upper Mid Upper Mid HP4 High
Coverstock HK22 - Aggression Solid HK22 - Cohesion Solid ER1 Solid Prime Response Solid (HK22C²)
Cover type Solid reactive Solid reactive Solid reactive Solid reactive
Core Gas Mask Gas Mask Gem AI I-Core 3.0
Core type Asymmetric Asymmetric Asymmetric Asymmetric
RG 2.500 2.500 2.490 (16 lb) 2.486
Diff 0.058 0.058 0.055 (16 lb) 0.056
Int. diff 0.016 0.016 0.017 0.015
Factory finish 500, 1000, 2000 Siaair Micro Pad 500, 1000, 2000 Siaair Micro Pad 2000 Grit 500, 2000 Siaair Micro Pad
Lane condition Medium oil – Heavy oil Medium oil – Heavy oil — Medium oil – Heavy oil
Flare potential — — High —
Reaction Aggressive backend Aggressive mid-lane and backend — Length with strong backend
Color Black / Orange Ultraviolet / Black Pink / Rose / Onyx Red / Scarlet / Crimson
Release date January 25, 2024 January 15, 2026 October 2, 2026 June 11, 2026
Status Current Current Current Current

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