Bowling ball core · Columbia 300
Columbia 300 Piranha Core
Symmetric Columbia 300 core
A symmetric core with later rev-up, more length and medium flare, built for medium to heavy oil. 1 of the 1 balls with this core are in stock at BowlersMart.
- Symmetric
- RG 2.554
- Diff 0.043

Specs
RG AT 15 LB
2.554
Later rev-up, more length
91% of the reactive and urethane balls we stock have a lower RG.
DIFFERENTIAL AT 15 LB
0.043
Medium flare
40% of the reactive and urethane balls we stock have a lower differential.
MASS BIAS AT 15 LB
None
Symmetric core
Symmetric cores have no mass bias marker to place when drilling.
| Weight | RG | DifferentialDiff | Mass biasMB |
|---|---|---|---|
| 16 lb | 2.562 | 0.036 | None |
| 15 lbUsed on this page | 2.554 | 0.043 | None |
| 14 lb | 2.570 | 0.043 | None |
| 13 lb | 2.582 | 0.042 | None |
| 12 lb | 2.605 | 0.042 | None |
Source: Columbia 300 published specs, as listed on the Columbia 300 Piranha Solid product page. RG and differential change with ball weight; use the row for the weight you throw. The highlighted 15 lb row is the one used on this page.
Balls with the Columbia 300 Piranha Core
1 of the 1 balls with the Columbia 300 Piranha Core are in stock at BowlersMart. Same core, different covers: pick the cover for the lanes you bowl on.

Columbia 300 HyperFlex Reactive
Medium to heavy oil
Where the Columbia 300 Piranha sits
Each dot is a core in balls we stock. Cores close together roll alike; the cover and layout decide the rest.
Navy ring = a ball in your bag. Dashed ring = off this chart, or this same core.
Nearest cores, zoomed in
Navy ring = a ball in your bag. Dashed ring = off this chart, or this same core.
Same family: Columbia 300 Piranha PowerCOR Core
This core 1 Nearest cores Other cores
| Core | Brand | Shape | RG | Diff | vs this core |
|---|---|---|---|---|---|
|
|
Motiv | Symmetric | 2.550 | 0.043 | RG −0.004 · Diff 0.000 |
|
|
Brunswick | Symmetric | 2.540 | 0.045 | RG −0.014 · Diff +0.002 |
|
|
Hammer | Symmetric | 2.545 | 0.047 | RG −0.009 · Diff +0.004 |
|
|
Storm | Symmetric | 2.540 | 0.046 | RG −0.014 · Diff +0.003 |
|
|
Storm | Symmetric | 2.570 | 0.046 | RG +0.016 · Diff +0.003 |
|
|
Motiv | Symmetric | 2.550 | 0.037 | RG −0.004 · Diff −0.006 |
Matches use 15 lb RG and differential.
Drilling and tools
Turn on JavaScript to compare with your ball.Balls with the Columbia 300 Piranha Core1 of the 1 balls with the Columbia 300 Piranha Core are in stock at BowlersMart. Same core, different covers: pick the cover for the lanes you bowl on.
Questions bowlers ask
What is the RG of the Columbia 300 Piranha Core?
At 15 lb the Columbia 300 Piranha Core has an RG of 2.554. It ranges from 2.554 to 2.605 across the listed weights.
What is the 14 lb RG of the Columbia 300 Piranha Core?
At 14 lb the RG is 2.570.
What is the differential of the Columbia 300 Piranha Core?
At 15 lb the differential is 0.043. This is a symmetric core, so mass bias is not applicable.
Which bowling balls use the Columbia 300 Piranha Core?
Columbia 300 Piranha Solid Bowling Ball. 1 are in stock now.
How do the Columbia 300 Piranha Core specs change by weight?
At 16 lb: RG 2.562, differential 0.036. At 12 lb: RG 2.605, differential 0.042.
How does the Columbia 300 Piranha Core compare with my ball?
Type the ball you throw into the Compare with your ball box on this page. It shows the RG and differential side by side and saves your bag for every core page.
Sources and method
Specs. Columbia 300 published specs, as listed on the Columbia 300 Piranha Solid product page, as published by the manufacturer.
Baseline. The baseline is 211 in-stock, published reactive and urethane balls. Plastic and polyester covers, 2-piece, 3-piece and pancake cores, missing covers and missing RG or differential values are excluded.
Percentiles. Percentiles are the share of baseline balls with a strictly lower or higher value; ties are not counted.
Nearest cores. Nearest cores are ranked by distance on standardized 15 lb RG and differential, with the same symmetric or asymmetric shape preferred among near ties (distance bands of 0.1).
Mass bias. Mass bias is compared among asymmetric balls with numeric mass bias only.
Updated. Catalog and page updated 2026-10-16.


Pay in 4 with Afterpay
Personalized Bowling Bags
Personalized Shammies
Personalized Bowling Jerseys
Shop Hammer Balls
Shop Epic Shoes
Shop Epic Bags