Bowling ball core · Brunswick
Brunswick QCS-24 Core
The core inside the Brunswick Quantum EVO line
An asymmetric core with mid-lane rev-up and high flare, built for medium to heavy oil. Balls with this core are no longer available at BowlersMart.
- Asymmetric
- RG 2.511
- Diff 0.053
- MB 0.024
Specs
RG AT 15 LB
2.511
Mid-lane rev-up
60% of the reactive and urethane balls we stock have a lower RG.
DIFFERENTIAL AT 15 LB
0.053
High flare
78% of the reactive and urethane balls we stock have a lower differential.
MASS BIAS AT 15 LB
0.024
Strong asymmetry
96% of the asymmetric reactive and urethane balls we stock have a lower mass bias.
| Weight | RG | DifferentialDiff | Mass biasMB |
|---|---|---|---|
| 16 lb | 2.520 | 0.046 | 0.021 |
| 15 lbUsed on this page | 2.511 | 0.053 | 0.024 |
| 14 lb | 2.527 | 0.053 | 0.024 |
| 13 lb | 2.597 | 0.041 | 0.014 |
| 12 lb | 2.593 | 0.041 | 0.014 |
Source: Brunswick published specs, as shown on BowlersMart’s original Brunswick QCS-24 core page (2022). 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.
Looking for a ball like your Quantum EVO?
Balls with the Brunswick QCS-24 Core are no longer available at BowlersMart. These in-stock balls have the closest RG and differential.

900 Global RB 94 Solid Reactive
Medium to heavy oil

Ebonite Optimize Pearl Reactive
Medium to heavy oil

Ebonite HK22 GB 13.7 Solid Reactive
Medium to heavy oil

Roto Grip MicroTrax Pearl Reactive
Medium to heavy oil, medium oil

Hammer HK22 C2 Solid Reactive
Medium to heavy oil

Hammer HK22 C2 Solid Reactive
Medium to heavy oil
Balls with the Brunswick QCS-24 Core
None of the 3 balls with the Brunswick QCS-24 Core are in stock at BowlersMart right now.
Show 3 balls no longer available at BowlersMart
| Ball | Cover | First seen |
|---|---|---|
| Brunswick Quantum EVO Response Bowling Ball | Brunswick Evolution Pearl Reactive | June 2023 |
| Brunswick Quantum EVO Response Overseas Bowling Ball | Brunswick Evolution Pearl Reactive | April 2023 |
| Brunswick Quantum EVO Pearl Bowling Ball | Brunswick Evolution Pearl Reactive | November 2021 |
Where the Brunswick QCS-24 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: Brunswick QCS-18 Core Same family: Brunswick QCS-12 Core
This core 1 Nearest cores Other cores
| Core | Brand | Shape | RG | Diff | vs this core |
|---|---|---|---|---|---|
|
|
900 Global | Asymmetric | 2.510 | 0.052 | RG −0.001 · Diff −0.001 |
|
|
Ebonite | Asymmetric | 2.515 | 0.052 | RG +0.004 · Diff −0.001 |
|
|
Ebonite | Symmetric | 2.508 | 0.054 | RG −0.003 · Diff +0.001 |
|
|
Roto Grip | Asymmetric | 2.510 | 0.051 | RG −0.001 · Diff −0.002 |
|
|
DV8 | Asymmetric | 2.504 | 0.051 | RG −0.007 · Diff −0.002 |
|
|
Hammer | Symmetric | 2.520 | 0.052 | RG +0.009 · Diff −0.001 |
Matches use 15 lb RG and differential.
Drilling and tools
The Brunswick Quantum Evo line of bowling balls represents the evolution of technology through the history of Brunswick’s Quantum series of bowling balls. The Quantum Evo Pearl continues with the identifiable mushroom-shaped core. The mushroom-shaped core found in this ball has been modified to include flow-through channels that allow DynamiCore2 to move into the core which helps with adhesion as well as durability and the ball’s hitting power. The technological advances with this ball introduce DynamiCore2 which creates the same thick shell effect without the need for an actual thick shell allowing easier revving and more versatility. The QCS-24 core is the original mushroom-shaped core that has a higher intermediate core value.
Questions bowlers ask
What is the RG of the Brunswick QCS-24 Core?
At 15 lb the Brunswick QCS-24 Core has an RG of 2.511. It ranges from 2.511 to 2.597 across the listed weights.
What is the 14 lb RG of the Brunswick QCS-24 Core?
At 14 lb the RG is 2.527.
What is the differential of the Brunswick QCS-24 Core?
At 15 lb the differential is 0.053. The mass bias is 0.024.
Which bowling balls use the Brunswick QCS-24 Core?
Brunswick Quantum EVO Response Bowling Ball, Brunswick Quantum EVO Response Overseas Bowling Ball, Brunswick Quantum EVO Pearl Bowling Ball. 0 are in stock now.
Can I still buy a ball with the Brunswick QCS-24 Core?
Balls with this core are currently unavailable at BowlersMart. Closest in-stock alternatives by RG and differential include 900 Global Viking Conquest Bowling Ball, Ebonite Entity Pearl Bowling Ball, Ebonite Go Time Bowling Ball, Roto Grip Transform Pearl Bowling Ball, Hammer Zero Mercy Solid Bowling Ball, Hammer Fallout Bowling Ball.
How do the Brunswick QCS-24 Core specs change by weight?
At 16 lb: RG 2.520, differential 0.046, mass bias 0.021. At 12 lb: RG 2.593, differential 0.041, mass bias 0.014.
How does the Brunswick QCS-24 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. Brunswick published specs, as shown on BowlersMart’s original Brunswick QCS-24 core page (2022), as published by the manufacturer.
Baseline. The baseline is 212 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 2026-10-17.


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