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Columbia 300 Rally bowling ball

Columbia 300

Rally

Released April 2025

Heavy OilEarly HookContinuous
Hook strength
9/10

Specs

Coverstock
HK22C - Formula 1 Hybrid Hybrid Reactive
Core
Shifter Asymmetric
RG
2.478
Differential
0.050
Intermediate diff (mass bias)
0.015
Factory finish
500/2000 Siaair Micro Pad
Released
April 2025

The oil, hook and strength labels are StrikeStack's estimate from the published specs, not the manufacturer's rating. Specs provided by bowwwl.com.

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