Arrow calculator

Pro Custom Build

Arrow Build Calculator

Build your arrow exactly how you want it. Select a Black Eagle shaft, adjust components, enter custom weights, and see finished weight, FOC, speed, energy, momentum, and balance in real time.

Build Your Arrow

Live Estimate

1 Shaft Details

Black Eagle Shaft

Spine

Arrow Length in

Shaft GPI gpi

Shaft Weight gr

2 Front Components

Insert / Outsert

Point / Broadhead

Additional Front Weight

Total Front Weight 176 gr

3 Rear Components

Nock

Vanes

Wrap

Total Rear Weight 32 gr

4 Bow Setup

Bow Speed ATA fps

Draw Weight lb

Draw Length in

Your Arrow Build

Excellent Match

Finished Arrow Weight

456grains

FOC

14.2%

Build Style

High FOC
Hunting Build

Front Weight

Insert / Outsert56 gr

Point / Broadhead100 gr

Additional Front20 gr

Total176 gr

Rear Weight

Nock9 gr

Vanes18 gr

Wrap5 gr

Total32 gr

Shaft

ArrowRampage

Spine300

Shaft Weight248 gr

Length28.5"

Arrow Balance Visual

Balance Point: 20.2"

0 14.25"
Center 20.2"
Balance 28.5"

Arrow Speed

274fps

Kinetic Energy

75.9ft-lbs

Momentum

0.540slug-ft/s

Spine Match

Good

Penetration

Excellent

93/100

Build Score

FOC BalanceExcellent

Finished WeightStrong

MomentumExcellent

Broadhead ControlExcellent

Recommended Black Eagle Build

Rampage 300

Rampage is a hard-hitting hunting shaft with excellent total weight and broadhead control for larger game.

View Arrow

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Build	Arrow	Shaft	Finished Weight	FOC	Speed	Best Use

Calculations are estimates for build planning and comparison. Confirm final spine, finished weight, and component setup before hunting or tournament use.