Compare bowling balls
Core numbers are compared in one weight. Some brands only publish them for one weight.
Hammer Epidemic
|
Storm Rocket A.I.
|
Storm Typhoon
|
Hammer Blacklist
|
|
|---|---|---|---|---|
| Brand | Hammer | Storm | Storm | Hammer |
| Line | — | Thunder | Hot | Upper Mid |
| Coverstock | Level 5 Reactive Pearl | A1S Pearl | Reactor Pearl | HK22 - Cohesion Pearl |
| Cover type | Pearl reactive | Pearl reactive | Pearl reactive | Pearl reactive |
| Core | Biohazard | Booster AI | Atmos AI | Stacked LED |
| Core type | — | Symmetric | Symmetric | — |
| RG | 2.530 | 2.520 (16 lb) | 2.530 (16 lb) | 2.545 |
| Diff | 0.050 | 0.046 (16 lb) | 0.042 (16 lb) | 0.047 |
| Int. diff | — | — | — | — |
| Factory finish | 800/1000/2000/2000 w/ PowerHouse™ Factory Finish Polish | Power Edge | Power Edge | 500, 1000, 1500 Siaair / Factory Compound |
| Lane condition | Medium oil | — | — | Medium oil |
| Flare potential | — | Medium-high | Medium | — |
| Reaction | — | — | — | Skid / Flip |
| Color | Full Spectrum | Chrome / Wine | Royal Purple / Steel | Black Pearl |
| Release date | — | May 1, 2026 | April 18, 2025 | November 19, 2026 |
| Status | Retired | Current | Current | Current |
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