Compare bowling balls
Core numbers are compared in one weight. Some brands only publish them for one weight.
Hammer Envy Tour
|
Hammer Zero Mercy Tour
|
Storm Ion Pro Pearl
|
Storm Ion Pro Solid
|
|
|---|---|---|---|---|
| Brand | Hammer | Hammer | Storm | Storm |
| Line | — | High | Premier | Premier |
| Coverstock | — | C² Tour Edition | NRG Pearl | TX-16 Solid |
| Cover type | — | Solid reactive | Pearl reactive | Solid reactive |
| Core | — | Obsession Tour | Element Tour AI | Element Tour AI |
| Core type | — | Asymmetric | Asymmetric | Asymmetric |
| RG | 2.469 | 2.469 | 2.470 (16 lb) | 2.470 (16 lb) |
| Diff | 0.034 | 0.034 | 0.035 (16 lb) | 0.035 (16 lb) |
| Int. diff | 0.013 | 0.013 | 0.013 | 0.013 |
| Factory finish | — | 500, 1000 Siaair Micro Pad | 4000 Grit | Power Edge |
| Lane condition | — | Medium oil – Heavy oil | — | — |
| Flare potential | — | — | Medium | Medium |
| Reaction | — | Strong mid-lane and backend | — | — |
| Color | — | Crimson | Amethyst Pearl | Capri Blue |
| Release date | February 23, 2022 | September 17, 2026 | November 6, 2026 | June 20, 2025 |
| Status | Retired | Current | Current | Current |
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