Gold Tip Hunter Pro (GTO) (6.5mm class (.246 in ID)): published spine and grains-per-inch table, the Gold Tip GTO nock it takes, its insert and the 8-32 point thread. Spines 300, 340, 400, 500.
Updated 05 September 2026.
Gold Tip Hunter Pro (GTO): spine, diameter and nock fitment
The published spine and GPI table for the Gold Tip Hunter Pro (GTO), the nock and insert it takes, and the point thread.
| Class | 6.5mm class (.246 in ID) |
|---|---|
| Inside diameter | .246 in |
| Straightness | +/-.001 in |
| Stock nock | Gold Tip GTO nock |
| Stock insert | Gold Tip Accu-Lite insert (12.1 gr) |
| Point thread | 8-32 |
| Spine 300 | 9.3 GPI,.302 in OD |
| Spine 340 | 8.9 GPI,.300 in OD |
| Spine 400 | 8.2 GPI,.295 in OD |
| Spine 500 | 7.3 GPI,.291 in OD |
Gold Tip Hunter Pro (GTO) carbon arrow shaft
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The Gold Tip Hunter Pro is the GTO-nock, tight-tolerance version of the Hunter, a 6.5mm-class shaft with a.246-inch inside diameter that takes a GTO nock and the Accu-Lite insert.
Its published spines run from 300 at 9.3 grains per inch to 500 at 7.3 grains per inch, sorted to a tight +/-.001-inch straightness and +/-0.5-grain weight.
The.246-inch bore uses the standard 8-32 point thread through the Accu-Lite insert, so standard field points and broadheads fit.
Nock, thread, chart and more
Questions and answers
What is the class of the Gold Tip Hunter Pro (GTO)?
6.5mm class (.246 in ID)
What is the inside diameter of the Gold Tip Hunter Pro (GTO)?
.246 in
What is the straightness of the Gold Tip Hunter Pro (GTO)?
+/-.001 in
What is the stock nock of the Gold Tip Hunter Pro (GTO)?
Gold Tip GTO nock