Bowling ball core · Hammer

Hammer Launcher Asymmetric Core

The core inside the Hammer Envy 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 2.505
  • Diff 0.055
  • MB 0.021
Hammer Launcher symmetric core shape inside the ball

Specs

RG AT 15 LB

2.505

Mid-lane rev-up

Revs soonerRevs later

52% of the reactive and urethane balls we stock have a lower RG.

DIFFERENTIAL AT 15 LB

0.055

High flare

Less flareMore flare

87% of the reactive and urethane balls we stock have a lower differential.

MASS BIAS AT 15 LB

0.021

Strong asymmetry

MilderStronger

96% 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.
Hammer Launcher Asymmetric Core specs by ball weight
Weight RG DifferentialDiff Mass biasMB
16 lb 2.517 0.047 0.019
15 lbUsed on this page 2.505 0.055 0.021
14 lb 2.550 0.055 0.017
13 lb 2.589 0.043 0.011
12 lb 2.612 0.043 0.011

Source: Hammer published specs, as shown on BowlersMart’s original Hammer Launcher Asymmetric 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 Envy?

Balls with the Hammer Launcher Asymmetric Core are no longer available at BowlersMart. These in-stock balls have the closest RG and differential.

Ebonite Go Time Bowling Ball

Ebonite Go Time

Ebonite HK22 GB 13.7 Solid Reactive

Medium to heavy oil

Sale price $149.95 Regular price $229.95In stock
Roto Grip Wicked Gremlin Bowling Ball

Roto Grip Wicked Gremlin

Roto Grip G-R1 Solid Reactive

Medium to heavy oil

Sale price $174.95 Regular price $249.95In stock
900 Global Viking Conquest Bowling Ball

900 Global Viking Conquest

900 Global RB 94 Solid Reactive

Medium to heavy oil

Sale price $209.95 Regular price $299.95In stock
Hammer Black Widow 3.0 Dynasty Bowling Ball

Hammer Black Widow 3.0 Dynasty

Hammer HK22 Cohesion Solid Reactive

Medium to heavy oil

Sale price $169.95 Regular price $249.95In stock
Ebonite Entity Pearl Bowling Ball

Ebonite Entity Pearl

Ebonite Optimize Pearl Reactive

Medium to heavy oil

Sale price $129.95 Regular price $279.99In stock
Brunswick Combat Solid Bowling Ball

Brunswick Combat Solid

Brunswick Alpha Premier Solid HK22C2 Reactive

Medium to heavy oil

Sale price $194.95 Regular price $289.95In stock

Balls with the Hammer Launcher Asymmetric Core

None of the 5 balls with the Hammer Launcher Asymmetric Core are in stock at BowlersMart right now.

Show 5 balls no longer available at BowlersMart
More bowling balls with the Hammer Launcher Asymmetric Core
Ball Cover First seen
Hammer Pure Envy Bowling Ball Hammer HK22 Cohesion Hybrid September 2024
Hammer Envy Pearl Overseas Bowling Ball Hammer Neoflip 2.0 Pearl Reactive August 2022
Hammer Extreme Envy Bowling Ball Hammer Envy CFI Solid Reactive August 2023
Hammer Envy Bowling Ball Hammer Envy Solid Reactive September 2022
Hammer Envy Revolution Overseas Bowling Ball Hammer Envy Pearl Reactive August 2023

Where the Hammer Launcher Asymmetric 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 0.047Hammer 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 0.053Ebonite 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 0.029Hammer Vibe Core, RG 2.510, diff 0.042Hammer Aftermath Core, RG 2.520, diff 0.052Brunswick Alert Core, RG 2.478, diff 0.037DV8 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 0.055Radical Guru Core, RG 2.503, diff 0.044Track I-CORE 3.0, RG 2.486, diff 0.056Brunswick 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 0.048Radical Torpedo Asymmetric Core, RG 2.480, diff 0.052Motiv Overload Core, RG 2.480, diff 0.050DV8 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 0.051Storm Velocity Core, RG 2.480, 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 0.047Brunswick Zone Asymmetric Core, RG 2.478, diff 0.048Ebonite Entity Core, RG 2.515, diff 0.052Roto Grip Rocker A.I. Core, RG 2.480, diff 0.050Motiv 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 0.047900 Global Ellipse Asymmetric A.I. Core, RG 2.480, diff 0.050Motiv 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 0.022Ebonite Big Time Core (pictured: Ebonite Go Time Bowling Ball)1900 Global Strobe A.I. Core (pictured: 900 Global Viking Bowling Ball)2Hammer Gas Mask Core (pictured: Hammer Black Widow 2.0 Bowling Ball)3Roto Grip Rondure MaxD Core (pictured: Roto Grip Gremlin Bowling Ball)4DV8 Unholy Core (pictured: DV8 Heckler Hybrid Bowling Ball)5Brunswick Rampart Core (pictured: Brunswick Combat Solid Bowling Ball)6Hammer Launcher Asymmetric Core (pictured: Hammer Pure Envy 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 Hammer Launcher Asymmetric Core
Core Brand Shape RG Diff vs this core
Ebonite Go Time Bowling Ball1Ebonite Big Time CorePictured: Ebonite Go Time
 Ebonite Symmetric 2.508 0.054 RG +0.003 · Diff −0.001
900 Global Viking Bowling Ball2900 Global Strobe A.I. CorePictured: 900 Global Viking
 900 Global Asymmetric 2.510 0.052 RG +0.005 · Diff −0.003
Hammer Black Widow 2.0 Bowling Ball3Hammer Gas Mask CorePictured: Hammer Black Widow 2.0
 Hammer Asymmetric 2.500 0.058 RG −0.005 · Diff +0.003
Roto Grip Gremlin Bowling Ball4Roto Grip Rondure MaxD CorePictured: Roto Grip Gremlin
 Roto Grip Asymmetric 2.500 0.058 RG −0.005 · Diff +0.003
DV8 Heckler Hybrid Bowling Ball5DV8 Unholy CorePictured: DV8 Heckler Hybrid
 DV8 Asymmetric 2.504 0.051 RG −0.001 · Diff −0.004
Brunswick Combat Solid Bowling Ball6Brunswick Rampart CorePictured: Brunswick Combat Solid
 Brunswick Asymmetric 2.502 0.051 RG −0.003 · Diff −0.004

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 Hammer Launcher Asymmetric CoreNone of the 5 balls with the Hammer Launcher Asymmetric Core are in stock at BowlersMart right now.Show 5 balls no longer available at BowlersMartMore bowling balls with the Hammer Launcher Asymmetric CoreBallCoverFirst seenHammer Pure Envy Bowling BallHammer HK22 Cohesion HybridSeptember 2024Hammer Envy Pearl Overseas Bowling BallHammer Neoflip 2.0 Pearl ReactiveAugust 2022Hammer Extreme Envy Bowling BallHammer Envy CFI Solid ReactiveAugust 2023Hammer Envy Bowling BallHammer Envy Solid ReactiveSeptember 2022Hammer Envy Revolution Overseas Bowling BallHammer Envy Pearl ReactiveAugust 2023Where the Hammer Launcher Asymmetric sitsEach dot is a core in balls we stock. Cores close together roll alike; the cover and layout decide the rest.All coresSymmetricAsymmetricHammer 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 0.047Hammer 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 Aff

From Hammer’s description

Questions bowlers ask

What is the RG of the Hammer Launcher Asymmetric Core?

At 15 lb the Hammer Launcher Asymmetric Core has an RG of 2.505. It ranges from 2.505 to 2.612 across the listed weights.

What is the 14 lb RG of the Hammer Launcher Asymmetric Core?

At 14 lb the RG is 2.550.

What is the differential of the Hammer Launcher Asymmetric Core?

At 15 lb the differential is 0.055. The mass bias is 0.021.

Which bowling balls use the Hammer Launcher Asymmetric Core?

Hammer Pure Envy Bowling Ball, Hammer Envy Pearl Overseas Bowling Ball, Hammer Extreme Envy Bowling Ball, Hammer Envy Bowling Ball, Hammer Envy Revolution Overseas Bowling Ball. 0 are in stock now.

Can I still buy a ball with the Hammer Launcher Asymmetric Core?

Balls with this core are currently unavailable at BowlersMart. Closest in-stock alternatives by RG and differential include Ebonite Go Time Bowling Ball, Roto Grip Wicked Gremlin Bowling Ball, 900 Global Viking Conquest Bowling Ball, Hammer Black Widow 3.0 Dynasty Bowling Ball, Ebonite Entity Pearl Bowling Ball, Brunswick Combat Solid Bowling Ball.

How do the Hammer Launcher Asymmetric Core specs change by weight?

At 16 lb: RG 2.517, differential 0.047, mass bias 0.019. At 12 lb: RG 2.612, differential 0.043, mass bias 0.011.

How does the Hammer Launcher Asymmetric 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. Hammer published specs, as shown on BowlersMart’s original Hammer Launcher Asymmetric 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

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