Compare bowling balls
Core numbers are compared in one weight. Some brands only publish them for one weight.
Hammer Pure Hammer - Black
|
Ebonite Turbo X NU
|
Brunswick Warning Alert
|
Brunswick Alert
|
|
|---|---|---|---|---|
| Brand | Hammer | Ebonite | Brunswick | Brunswick |
| Line | Pure Hammer | Mid | High | High |
| Coverstock | Urethane | NU Active | HK22 - Savvy Hook Hybrid | HK22 - Savvy Hook Solid |
| Cover type | Urethane | — | Hybrid reactive | Solid reactive |
| Core | 2-piece | Turbo | Alert | Alert |
| Core type | — | — | Symmetric | Symmetric |
| RG | 2.480 | 2.517 | 2.478 | 2.478 |
| Diff | 0.039 | 0.040 | 0.037 | 0.037 |
| Int. diff | — | — | — | — |
| Factory finish | Matte | 500, 1000 Siaair Micro Pad | 500, 1000, 1500 Siaair / Crown Factory Compound | 500, 1000, 2000 Siaair Micro Pad |
| Lane condition | — | Light oil – Medium oil | — | — |
| Flare potential | — | — | — | — |
| Reaction | — | Smooth and continuous | — | — |
| Color | Black | Purple / Grey | Lapis / Black | Black / Purple / Grape |
| Release date | — | May 14, 2026 | August 13, 2026 | October 23, 2025 |
| Status | Retired | Current | Current | Current |
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