Compare bowling balls
Core numbers are compared in one weight. Some brands only publish them for one weight.
Brunswick Siege
|
Ebonite Game Breaker 5 Pearl
|
Storm Phaze II Pearl
|
Radical Guru Oracle Pearl
|
|
|---|---|---|---|---|
| Brand | Brunswick | Ebonite | Storm | Radical |
| Line | Pro | Mid | Master | Top Shelf |
| Coverstock | Propel Pearl | HK22 - GB 12.7 Pearl | TX-25 Pearl | HK22C+ Pearl |
| Cover type | Pearl reactive | Pearl reactive | Pearl reactive | Pearl reactive |
| Core | M.A.C.E. (Mechanical Asymmetric Core Engineering) | Enhanced V2 | Velocity | Guru Asymmetric |
| Core type | Asymmetric | — | Symmetric | Asymmetric |
| RG | 2.474 (16 lb) | 2.480 | 2.480 (16 lb) | 2.503 |
| Diff | 0.056 (16 lb) | 0.048 | 0.051 (16 lb) | 0.044 |
| Int. diff | — | — | — | — |
| Factory finish | 1,000 Siaair Micro Pad | 500, 1000, 1500 Siaair / Factory Compound | Power Edge | 500, 1000, 1500 Siaair / Factory Compound |
| Lane condition | — | Medium oil | — | — |
| Flare potential | — | — | Medium-high | — |
| Reaction | — | Length with strong backend | — | — |
| Color | Black / Silver | Purple / Blue | Red / Blue / Purple | Black / Gold |
| Release date | — | March 20, 2025 | November 28, 2025 | June 11, 2026 |
| Status | Retired | Current | Current | Current |
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