Bowling ball core · Columbia 300

Columbia 300 Shifter Core

Asymmetric Columbia 300 core

An asymmetric core with early rev-up and medium flare, built for medium to heavy oil. Balls with this core are no longer available at BowlersMart.

  • Asymmetric
  • RG 2.478
  • Diff 0.050
  • MB 0.015
Columbia 300 Shifter asymmetric core shape inside the ball

Specs

RG AT 15 LB

2.478

Early rev-up

Revs soonerRevs later

14% of the reactive and urethane balls we stock have a lower RG.

DIFFERENTIAL AT 15 LB

0.050

Medium flare

Less flareMore flare

62% of the reactive and urethane balls we stock have a lower differential.

MASS BIAS AT 15 LB

0.015

Mild asymmetry

MilderStronger

24% of the asymmetric reactive and urethane balls we stock have a lower mass bias.

RG How soon the ball revs up.Differential How much the ball can flare.Mass bias How asymmetric the core is.
Columbia 300 Shifter Core specs by ball weight
Weight RG DifferentialDiff Mass biasMB
16 lb 2.480 0.049 0.015
15 lbUsed on this page 2.478 0.050 0.015
14 lb 2.494 0.050 0.015
13 lb 2.597 0.041 0.014
12 lb 2.593 0.041 0.014

Source: Columbia 300 published specs, as shown on BowlersMart’s original Columbia 300 Shifter 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 Columbia 300 Shifter?

Balls with the Columbia 300 Shifter Core are no longer available at BowlersMart. These in-stock balls have the closest RG and differential.

Motiv Evoke Mayhem Bowling Ball

Motiv Evoke Mayhem

Motiv Propulsion MXV Reactive

Medium to heavy oil

Sale price $204.95 Regular price $289.95In stock
900 Global Origin EX Bowling Ball

900 Global Origin EX

900 Global RB 89 Solid Reactive

Medium to heavy oil

Sale price $109.95 Regular price $299.95In stock
Roto Grip Rockstar Amped Bowling Ball

Roto Grip Rockstar Amped

Roto Grip Nanostar Pearl Reactive

Medium to heavy oil

Sale price $104.95 Regular price $249.95In stock
Storm Phaze 2 Pearl Bowling Ball

Storm Phaze 2 Pearl

Storm TX-25 Pearl Reactive

Medium to heavy oil

Sale price $184.95 Regular price $249.95In stock
Radical No Doubt Solid Bowling Ball

Radical No Doubt Solid

Radical HK22C+ Reactive

Medium to heavy oil

Sale price $94.95 Regular price $249.95In stock
Radical Deep Impact Bowling Ball

Radical Deep Impact

HK22C+ Hybrid Reactive

Heavy oil

Sale price $169.95 Regular price $259.95In stock

Balls with the Columbia 300 Shifter Core

None of the 5 balls with the Columbia 300 Shifter Core are in stock at BowlersMart right now.

Show 5 balls no longer available at BowlersMart
More bowling balls with the Columbia 300 Shifter Core
Ball Cover First seen
Columbia 300 Street Rally Bowling Ball Columbia 300 Formula 1 Pearl Reactive December 2025
Columbia 300 Rally Bowling Ball Columbia 300 Formula 1 Hybrid Reactive April 2025
Columbia 300 High Speed Bowling Ball Columbia 300 Formula 1 Hybrid Reactive August 2023
Columbia 300 Top Speed Bowling Ball Columbia 300 Formula 1 Pearl Reactive October 2022
Columbia 300 Speed Bowling Ball Columbia 300 Formula 1 Hybrid Reactive February 2022

Where the Columbia 300 Shifter sits

Each dot is a core in balls we stock. Cores close together roll alike; the cover and layout decide the rest.

Storm Element Tour A.I. Core, RG 2.470, diff 0.035DV8 Larceny Core, RG 2.471, diff 0.028DV8 Renegade Core, RG 2.499, diff 0.040Track I-Core Gen4, RG 2.480, diff 0.053Brunswick Vintage Light Bulb Low RG Core, RG 2.568, diff 0.032Brunswick Dual Centric Core, RG 2.509, diff 0.047Ebonite Big Time Core, RG 2.508, diff 0.054Hammer Stacked LED Core, RG 2.545, diff 0.047Hammer Vindicator Core, RG 2.474, diff 0.053Radical Vexed Variant Asymmetric Core, RG 2.490, diff 0.045Radical Modified Intel Symmetric Core, RG 2.483, diff 0.032Motiv Affliction V2 Core, RG 2.480, diff 0.055900 Global Conduit A.I. Core, RG 2.590, diff 0.050Roto Grip GEM A.I. Core, RG 2.490, diff 0.057Hammer Obsession Tour Core, RG 2.469, diff 0.034Hammer Super Offset Core, RG 2.524, diff 0.053Hammer Gas Mask Core, RG 2.500, diff 0.058Ebonite Turbo Core, RG 2.517, diff 0.040Ebonite Centrex Symmetrical Mass Bias Core, RG 2.466, diff 0.056Motiv Excel Core, RG 2.550, diff 0.030Motiv Detonator Core, RG 2.470, diff 0.055Storm Solarion A.I. Core, RG 2.480, diff 0.054SWAG Insanity Symmetric Core, RG 2.520, diff 0.034SWAG Fusion Core, RG 2.540, diff 0.036SWAG Watcher Symmetric Core, RG 2.510, diff 0.048SWAG Dragon Asymmetric Core, RG 2.490, diff 0.050SWAG Executioner Asymmetric Core, RG 2.500, diff 0.051Motiv Predator V2 Core, RG 2.470, diff 0.054Storm C3 Centripetal Control Core, RG 2.490, diff 0.029Roto Grip Rondure MaxD Core, RG 2.500, diff 0.058Hammer Vibe Core, RG 2.510, diff 0.042Hammer Aftermath Core, RG 2.520, diff 0.052Brunswick Alert Core, RG 2.478, diff 0.037Brunswick Rampart Core, RG 2.502, diff 0.051DV8 Collision Core, RG 2.462, diff 0.052Track MC2 Asym Core, RG 2.473, diff 0.046Radical Evil Eye Symmetric Core, RG 2.495, diff 0.046Ebonite Iron Fist V2 Core, RG 2.473, diff 0.053Radical No Doubt Symmetric Core, RG 2.485, diff 0.051Storm Surge Core, RG 2.580, diff 0.024Roto Grip Hyped UP Core, RG 2.500, diff 0.042Roto Grip Morph-Wing Core, RG 2.510, diff 0.051Brunswick Fury Core, RG 2.524, diff 0.038Motiv Sigma Core, RG 2.470, diff 0.047Roto Grip Hustle Core, RG 2.530, diff 0.030900 Global Blast A.I. Core, RG 2.470, diff 0.055900 Global Strobe A.I. Core, RG 2.510, diff 0.052Radical Guru Core, RG 2.503, diff 0.044Track I-CORE 3.0, RG 2.486, diff 0.056DV8 Unholy Core, RG 2.504, diff 0.051Brunswick Infinity Core, RG 2.521, diff 0.051Storm Catalyst A.I. Core, RG 2.480, diff 0.053Hammer Gauntlet Core, RG 2.501, diff 0.050Hammer Raw Hammer Core, RG 2.537, diff 0.038Storm Atmos A.I. Core, RG 2.530, diff 0.042Storm Booster Core, RG 2.540, diff 0.046Track Shuttle Core, RG 2.480, diff 0.040Brunswick Light Bulb Core, RG 2.524, diff 0.030Radical Sneak Attack Core, RG 2.544, diff 0.036Motiv Gear Core, RG 2.480, diff 0.034Hammer Huntsman Core, RG 2.470, diff 0.050Hammer Super LED Core, RG 2.632, diff 0.034Ebonite Enhanced V2 Core, RG 2.480, diff 0.048DV8 Dualistic Core, RG 2.496, diff 0.045Radical Vexed Asymmetric Core, RG 2.498, diff 0.036Motiv Quadfire Core, RG 2.550, diff 0.043Track Stealth Core, RG 2.482, diff 0.056Brunswick Tiered Hexagon Core, RG 2.540, diff 0.045Columbia 300 Piranha Core, RG 2.554, diff 0.043Storm Torsion A.I. Core, RG 2.470, diff 0.050Storm Element Max A.I. Core, RG 2.470, diff 0.055Storm Radius Core, RG 2.610, diff 0.020Roto Grip Rondure Tour X Core, RG 2.480, diff 0.034SWAG Unreal Core, RG 2.510, diff 0.047SWAG Craze Core, RG 2.520, diff 0.030SWAG Serpent Asymmetric Core, RG 2.510, diff 0.048DV8 Duality Core, RG 2.480, diff 0.036Hammer Spheroid Core, RG 2.480, diff 0.048Radical Outer Limits Asymmetric Core, RG 2.499, diff 0.051Motiv Apex Predator Core, RG 2.520, diff 0.055Brunswick Danger Zone Core, RG 2.501, diff 0.048Storm RAD-TQ Core, RG 2.560, diff 0.051Hammer Modified LED Core, RG 2.586, diff 0.027Epic Spark Core, RG 2.540, diff 0.049Motiv Hadron Dual Density Core, RG 2.500, diff 0.045Track Criterion ID Core, RG 2.496, diff 0.047Ebonite Entity Core, RG 2.515, diff 0.052Motiv Flux Core, RG 2.570, diff 0.015DV8 Mantra Core, RG 2.498, diff 0.047Hammer Gas Mask Low Diff Core, RG 2.500, diff 0.034Roto Grip RST A.I. Core, RG 2.520, diff 0.055Motiv Impulse V2 Core, RG 2.550, diff 0.050SWAG APX V1 Core, RG 2.500, diff 0.042SWAG Judge Core, RG 2.490, diff 0.052900 Global Magna A.I. Core, RG 2.490, diff 0.044Columbia 300 Pulse PowerCOR Core, RG 2.468, diff 0.045KR Strikeforce Launch Core, RG 2.530, diff 0.047Motiv Halogen Core, RG 2.550, diff 0.037Storm C3 A.I. Core, RG 2.480, diff 0.031Motiv Gear APG Core, RG 2.470, diff 0.036Radical Snapshot Symmetric Core, RG 2.523, diff 0.050Hammer High Rev Offset Core, RG 2.489, diff 0.053Hammer Huntsman Tour Core, RG 2.472, diff 0.036Hammer LED Core, RG 2.650, diff 0.015Storm Inverted Fe2 Core, RG 2.570, diff 0.046Storm Capacitor Core, RG 2.570, diff 0.022900 Global Ellipse Asymmetric A.I. Core (pictured: 900 Global Origin EX Bowling Ball)1Motiv Overload Core (pictured: Motiv Evoke Hysteria Bowling Ball)2Roto Grip Rocker A.I. Core (pictured: Roto Grip Rockstar Amped Bowling Ball)3Brunswick Zone Asymmetric Core (pictured: Brunswick Energize Bowling Ball)4Storm Velocity Core (pictured: Storm Phaze 2 Bowling Ball)5Radical Torpedo Asymmetric Core (pictured: Radical Torpedo Direct Hit Bowling Ball)6Columbia 300 Shifter Core (pictured: Columbia 300 Street Rally Bowling Ball)EARLY REV-UPMID-LANELATER REV-UPHIGH FLAREMEDIUMLOW FLARE2.442.482.522.562.602.642.680.0100.0200.0300.0400.0500.060RG at 15 lbDifferential at 15 lb← Revs up soonerRevs up later →More flare ↑Less flare ↓

Nearest cores, zoomed in

Hover or tap a dot for that core’s numbers. Click a dot to open its page. Drag to move around when zoomed in. The same RG and differential do not guarantee the same ball motion.

This core 1 Nearest cores Other cores

Nearest cores to the Columbia 300 Shifter Core
Core Brand Shape RG Diff vs this core
900 Global Origin EX Bowling Ball1900 Global Ellipse Asymmetric A.I. CorePictured: 900 Global Origin EX
 900 Global Asymmetric 2.480 0.050 RG +0.002 · Diff 0.000
Motiv Evoke Hysteria Bowling Ball2Motiv Overload CorePictured: Motiv Evoke Hysteria
 Motiv Asymmetric 2.480 0.050 RG +0.002 · Diff 0.000
Roto Grip Rockstar Amped Bowling Ball3Roto Grip Rocker A.I. CorePictured: Roto Grip Rockstar Amped
 Roto Grip Symmetric 2.480 0.050 RG +0.002 · Diff 0.000
Brunswick Energize Bowling Ball4Brunswick Zone Asymmetric CorePictured: Brunswick Energize
 Brunswick Asymmetric 2.478 0.048 RG 0.000 · Diff −0.002
Storm Phaze 2 Bowling Ball5Storm Velocity CorePictured: Storm Phaze 2
 Storm Symmetric 2.480 0.051 RG +0.002 · Diff +0.001
Radical Torpedo Direct Hit Bowling Ball6Radical Torpedo Asymmetric CorePictured: Radical Torpedo Direct Hit
 Radical Asymmetric 2.480 0.052 RG +0.002 · Diff +0.002

Matches use 15 lb RG and differential.

Drilling and tools

Drilling layoutsLayout guides for symmetric and asymmetric ballsDual angle converterTurn a pin to PAP layout into a dual angle layout

Turn on JavaScript to compare with your ball.Balls with the Columbia 300 Shifter CoreNone of the 5 balls with the Columbia 300 Shifter Core are in stock at BowlersMart right now.Show 5 balls no longer available at BowlersMartMore bowling balls with the Columbia 300 Shifter CoreBallCoverFirst seenColumbia 300 Street Rally Bowling BallColumbia 300 Formula 1 Pearl ReactiveDecember 2025Columbia 300 Rally Bowling BallColumbia 300 Formula 1 Hybrid ReactiveApril 2025Columbia 300 High Speed Bowling BallColumbia 300 Formula 1 Hybrid ReactiveAugust 2023Columbia 300 Top Speed Bowling BallColumbia 300 Formula 1 Pearl ReactiveOctober 2022Columbia 300 Speed Bowling BallColumbia 300 Formula 1 Hybrid ReactiveFebruary 2022Where the Columbia 300 Shifter sitsEach dot is a core in balls we stock. Cores close together roll alike; the cover and layout decide the rest.All coresSymmetricAsymmetricColumbia 300 onlyAny brand900 GlobalBrunswickColumbia 300DV8EboniteEpicHammerKR StrikeforceMotivRadicalRoto GripSWAGStormTrack+−ResetZoom to this coreStorm Element Tour A.I. Core, RG 2.470, diff 0.035DV8 Larceny Core, RG 2.471, diff 0.028DV8 Renegade Core, RG 2.499, diff 0.040Track I-Core Gen4, RG 2.480, diff 0.053Brunswick Vintage Light Bulb Low RG Core, RG 2.568, diff 0.032Brunswick Dual Centric Core, RG 2.509, diff 0.047Ebonite Big Time Core, RG 2.508, diff 0.054Hammer Stacked LED Core, RG 2.545, diff 0.047Hammer Vindicator Core, RG 2.474, diff 0.053Radical Vexed Variant Asymmetric Core, RG 2.490, diff 0

From Columbia 300’s description

Questions bowlers ask

What is the RG of the Columbia 300 Shifter Core?

At 15 lb the Columbia 300 Shifter Core has an RG of 2.478. It ranges from 2.478 to 2.597 across the listed weights.

What is the 14 lb RG of the Columbia 300 Shifter Core?

At 14 lb the RG is 2.494.

What is the differential of the Columbia 300 Shifter Core?

At 15 lb the differential is 0.050. The mass bias is 0.015.

Which bowling balls use the Columbia 300 Shifter Core?

Columbia 300 Street Rally Bowling Ball, Columbia 300 Rally Bowling Ball, Columbia 300 High Speed Bowling Ball, Columbia 300 Top Speed Bowling Ball, Columbia 300 Speed Bowling Ball. 0 are in stock now.

Can I still buy a ball with the Columbia 300 Shifter Core?

Balls with this core are currently unavailable at BowlersMart. Closest in-stock alternatives by RG and differential include Motiv Evoke Mayhem Bowling Ball, 900 Global Origin EX Bowling Ball, Roto Grip Rockstar Amped Bowling Ball, Storm Phaze 2 Pearl Bowling Ball, Radical No Doubt Solid Bowling Ball, Radical Deep Impact Bowling Ball.

How do the Columbia 300 Shifter Core specs change by weight?

At 16 lb: RG 2.480, differential 0.049, mass bias 0.015. At 12 lb: RG 2.593, differential 0.041, mass bias 0.014.

How does the Columbia 300 Shifter 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 shown on BowlersMart’s original Columbia 300 Shifter 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 2026-10-16.

Next lesson

Compare cores by RGEvery in-stock ball from lowest to highest RGCompare cores by differentialEvery in-stock ball from lowest to highest differentialAll bowling ball coresCore libraries for every brand we carryColumbia 300 core libraryEvery Columbia 300 core we have specs for