Compare the specs of the Hammer Purple Pearl Urethane 78D and Hammer Zero Mercy Solid side by side in the ball comparison table below. To view the full bowling ball review for one of these balls, click the ball name link in the table below.
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| Brand | Hammer | Hammer |
|---|---|---|
| Ball Name | Purple Pearl Urethane 78D | Zero Mercy Solid |
| Cover Name | Urethane Pearl 78D | HK22C2 Solid |
| Cover Type | Urethane Pearl | Reactive Solid |
| Box Finish | 500 SiaAir | 500 / 1500 SiaAir |
| Color | Purple Pearl | Black / Purple / White / Red |
| Core Name | Super LED | Super Offset |
| Core Type | Symmetrical | Asymmetrical |
| RG | 2.632 | 2.524 |
| Total Diff. | 0.034 | 0.053 |
| Int. Diff. | 0.000 | 0.020 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |


