BoltFitFinder

Spine 340 Easton 5MM FMJ vs Spine 300 Easton 6 5MM Bowhunter: specs compared

Updated 05 September 2026.

11.3 GPI
Spine 340 Easton 5MM FMJ wins on grains per inch

On grains per inch, Spine 340 Easton 5MM FMJ leads: 11.3 GPI versus 9.5 GPI.

SpecSpine 340 Easton 5MM FMJSpine 300 Easton 6 5MM Bowhunter
ModelEaston 5mm FMJEaston 6.5mm Bowhunter
BrandEastonEaston
Spine340300
Outside diameter.269 in OD.300 in OD
Weight11.3 GPI9.5 GPI
Grains per inch11.3 GPI9.5 GPI
Inside diameter.204 in.246 in
Stock nock5mm X nock (9 gr)6.5mm Microlite nock (8 gr)
Stock insert5mm HIT insert (16 gr)6.5mm insert (23 gr, 5/16 field points)
Point thread8-328-32
Straightness+/-.001 in+/-.005 in
Suitsa medium draw of roughly 45 to 65 lba heavy draw of roughly 65 lb and up

Questions and answers

Which has the higher grains per inch, Spine 340 Easton 5MM FMJ or Spine 300 Easton 6 5MM Bowhunter?

On grains per inch, Spine 340 Easton 5MM FMJ leads: 11.3 GPI versus 9.5 GPI.

How do Spine 340 Easton 5MM FMJ and Spine 300 Easton 6 5MM Bowhunter compare?

On grains per inch, Spine 340 Easton 5MM FMJ leads: 11.3 GPI versus 9.5 GPI.

Compared here

Easton 5mm FMJ in a 340 spine: GPI, bore and nockEaston 6.5mm Bowhunter in a 300 spine: GPI, bore and nock