BoltFitFinder

Spine 400 Gold TIP Force FOC vs Spine 300 Gold TIP Hunter PRO: specs compared

Updated 05 September 2026.

9.3 GPI
Spine 300 Gold TIP Hunter PRO wins on grains per inch

On grains per inch, Spine 300 Gold TIP Hunter PRO leads: 9.3 GPI versus 7.4 GPI.

SpecSpine 400 Gold TIP Force FOCSpine 300 Gold TIP Hunter PRO
ModelGold Tip Force F.O.C.Gold Tip Hunter Pro (GTO)
BrandGold TipGold Tip
Spine400300
Outside diameter.291 in OD.302 in OD
Weight7.4 GPI9.3 GPI
Grains per inch7.4 GPI9.3 GPI
Inside diameter.246 in.246 in
Stock nockGold Tip Accu-Lite nock (8.3 gr)Gold Tip GTO nock
Stock insertGold Tip.246 brass insert (100 gr), plus Accu-Lite insert (12.1 gr)Gold Tip Accu-Lite insert (12.1 gr)
Point thread8-328-32
Straightness+/-.001 in+/-.001 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 400 Gold TIP Force FOC or Spine 300 Gold TIP Hunter PRO?

On grains per inch, Spine 300 Gold TIP Hunter PRO leads: 9.3 GPI versus 7.4 GPI.

How do Spine 400 Gold TIP Force FOC and Spine 300 Gold TIP Hunter PRO compare?

On grains per inch, Spine 300 Gold TIP Hunter PRO leads: 9.3 GPI versus 7.4 GPI.

Compared here

Gold Tip Force F.O.C. in a 400 spine: GPI, bore and nockGold Tip Hunter Pro (GTO) in a 300 spine: GPI, bore and nock