Core numbers are compared in one weight. Some brands only publish them for one weight.
Hammer Purple Pearl Urethane 78D
|
Storm !Q Tour 78/U
|
ProBowl Stallion
|
Hammer Black Pearl Urethane
|
|
|---|---|---|---|---|
| Brand | Hammer | Storm | ProBowl | Hammer |
| Line | Mid | Master | — | Mid |
| Coverstock | Urethane Pearl 78D | Controll 78 Urethane | Solid Urethane | Urethane Pearl 78D |
| Cover type | Urethane | Urethane | Urethane | Urethane |
| Core | Super LED | C3C | Grenade | LED |
| Core type | — | Symmetric | — | Symmetric |
| RG | 2.632 | 2.650 (12 lb) | 2.646 | 2.650 |
| Diff | 0.034 | 0.035 (12 lb) | 0.029 | 0.015 |
| Int. diff | — | — | — | — |
| Factory finish | 500 Siaair Micro Pad | 500 Grit | 1000 grit Abralon | 500 Siaair Micro Pad |
| Lane condition | Light oil | — | — | Light oil |
| Flare potential | — | — | — | — |
| Reaction | Strong arc | — | — | Smooth arc |
| Color | Purple Pearl | Crimson | Black | Black Pearl |
| Release date | March 19, 2026 | December 15, 2023 | — | March 21, 2024 |
| Status | Current | Current | Current | Current |
Keep your arsenal in BowlingMaat: weight, layout, surface and maintenance of every ball in one place. Free, and no games to log.