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Spine 340 Easton 5MM Axis vs Spine 600 Easton 5MM Axis: specs compared

Updated 05 September 2026.

9.5 GPI
Spine 340 Easton 5MM Axis wins on grains per inch

On grains per inch, Spine 340 Easton 5MM Axis leads: 9.5 GPI versus 7.2 GPI.

SpecSpine 340 Easton 5MM AxisSpine 600 Easton 5MM Axis
ModelEaston 5mm AxisEaston 5mm Axis
BrandEastonEaston
Spine340600
Weight9.5 GPI7.2 GPI
Grains per inch9.5 GPI7.2 GPI
Inside diameter.204 in.204 in
Stock nockEaston X nock (9 gr)Easton X nock (9 gr)
Stock insertEaston ST Axis HIT insert (16 gr)Easton ST Axis HIT insert (16 gr)
Point thread8-328-32
Straightness+/-.003 in+/-.003 in
Suitsa medium draw of roughly 45 to 65 lba lighter draw of roughly 25 to 45 lb

Questions and answers

Which has the higher grains per inch, Spine 340 Easton 5MM Axis or Spine 600 Easton 5MM Axis?

On grains per inch, Spine 340 Easton 5MM Axis leads: 9.5 GPI versus 7.2 GPI.

How do Spine 340 Easton 5MM Axis and Spine 600 Easton 5MM Axis compare?

On grains per inch, Spine 340 Easton 5MM Axis leads: 9.5 GPI versus 7.2 GPI.

Compared here

Easton 5mm Axis in a 340 spine: GPI, bore and nockEaston 5mm Axis in a 600 spine: GPI, bore and nock