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The Gold Tip Hunter Pro (GTO) in a 400 spine: 8.2 grains per inch,.246 in bore, the Gold Tip GTO nock it takes and the 8-32 thread. Suits a medium draw of roughly 45 to 65 lb. Sourced.

Updated 05 September 2026.

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Gold Tip Hunter Pro (GTO) in a 400 spine: GPI, bore and nock

The 400 spine of the Gold Tip Hunter Pro (GTO): its exact GPI, the nock and thread it takes, and the draw it suits.

The Gold Tip Hunter Pro (GTO) in a 400 spine weighs 8.2 grains per inch and suits a medium draw of roughly 45 to 65 lb. It takes the Gold Tip GTO nock its.246 in bore requires and the 8-32 point thread; confirm on the maker chart for your exact draw and length.
This spinemanufacturer data, cited
ModelGold Tip Hunter Pro (GTO)
BrandGold Tip
Spine400
Outside diameter.295 in OD
Weight8.2 GPI
Grains per inch8.2 GPI
Inside diameter.246 in
Stock nockGold Tip GTO nock
Stock insertGold Tip Accu-Lite insert (12.1 gr)
Point thread8-32
Straightness+/-.001 in
Suitsa medium draw of roughly 45 to 65 lb
The shaft

Gold Tip Hunter Pro (GTO) carbon arrow shaft (400 spine)

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Field notes

This is the 400 spine of the Gold Tip Hunter Pro (GTO), a 6.5mm class (.246 in ID) shaft with a.246 in inside diameter. In this spine it weighs 8.2 grains per inch and measures.295 in OD across. A 400 spine sits at the mid range, the most common hunting-weight compound band.

Because the bore is.246 in, it takes the Gold Tip GTO nock and the Gold Tip Accu-Lite insert (12.1 gr), and it threads to the 8-32. Those do not change with spine; only the GPI and outside diameter move across the table.

Spine is a starting point, not a guarantee: a 400 from one brand can differ from another. Read your exact draw weight and arrow length on the maker chart or bare-shaft test before cutting a dozen, and keep the finished arrow above the 5-grains-per-pound floor.

Spec, chart, nock and concept

Gold Tip Hunter Pro (GTO)the full shaft spec (300, 340, 400, 500)Gold Tip Hunter Pro (GTO) spine chartwhich spine for your draw weightWhat an arrow spine number meanshow to read the deflection numberThe nock that fits this borepress-fit nock for the.246 in shaftThe 5-grains-per-pound floorkeep the finished arrow heavy enoughEaston 5mm FMJanother Easton shaft

Questions and answers

What is the model of the Gold Tip Hunter Pro (GTO) in a 400 spine?

Gold Tip Hunter Pro (GTO)

What is the brand of the Gold Tip Hunter Pro (GTO) in a 400 spine?

Gold Tip

What is the spine of the Gold Tip Hunter Pro (GTO) in a 400 spine?

400

What is the outside diameter of the Gold Tip Hunter Pro (GTO) in a 400 spine?

.295 in OD