Columbia 300 Piranha PowerCOR, released in 2023, pairs the HK22 - ERT+ Solid cover with a symmetric Piranha PowerCOR core. It measures RG 2.52 and differential .055 — medium RG and high flare potential, banded on Storm's published scale. It leaves the factory at 500, 2000 Siaair Micro Pad.
Measured at 15 lb. These are box specs for an undrilled ball — drilling changes them.
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Brand vocabulary, not measurements — no two manufacturers use the same scale, so these never compare across brands.
| Weight | RG | Diff | Int. |
|---|---|---|---|
| 12 lb | 2.60 | 0.042 | — |
| 13 lb | 2.58 | 0.042 | — |
| 14 lb | 2.53 | 0.055 | — |
| 15 lb | 2.52 | 0.055 | — |
| 16 lb | 2.53 | 0.048 | — |
These specs are factory reference for the model, compiled from manufacturer publications and other sources and provided as is. They may contain errors or describe a different production run, and they say nothing about the condition of any individual used ball — surface prep, resurfacing, plugging, and drilling all change how a ball behaves relative to its published numbers. Spotted something wrong? Tell us at support@rerackbowling.com.
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Closest on the three specs that compare across brands — RG, differential and symmetry. One ball per line, so no other version of the Piranha PowerCOR appears here.