The right bolt for the TenPoint TX 440
The correct bolt length, nock and minimum grain weight for the TenPoint TX 440, and what stops a dry-fire.
Dry-fire warning
Bolt length, nock type and minimum grain weight are quoted from each manufacturer's published arrow data and owner documentation, cited on every page. A nock or grain-weight mismatch can cause a dry-fire that damages the bow and can injure the shooter. Confirm against your own owner's manual before shooting, and never drop below the stated minimum total grain weight.
| Bolt length | 20 in |
|---|---|
| Required nock | Alpha-Nock HPX |
| Factory arrow | CenterPunch HPX, 445 gr, 15.5% FOC, +/-.001 straightness |
| Rated speed | 440 fps (410 gr) / 420 fps (445 gr) |
| Minimum total grain | 410 gr total (Pro Elite 400) minimum shipped weight |
TenPoint CenterPunch HPX 20 in carbon arrow with Alpha-Nock HPX
Search Amazon for TenPoint CenterPunch HPX 20 in carbon arrow with Alpha-Nock HPXaffiliate searchField notes
The TX 440 ships with CenterPunch HPX carbon arrows and an Alpha-Nock HPX. It is a railless Zero-Trac barrel, so the bolt rides on two ball bearings under a retention brush rather than a grooved rail. Stay at 20 inches and keep the Alpha-Nock.
Do not fit an older Omni-Nock or a flat nock to save money. On this narrow, high-speed bow the string can pass under a non-Alpha nock and simulate a dry-fire even with the dry-fire inhibitor engaged, and it voids the warranty.
Related crossbows and the nock
Sources: TenPoint - EVO-X CenterPunch 20 inch arrow spec (Lancaster Archery listing) · TenPoint - Alpha-Nock use required on TenPoint and Wicked Ridge crossbows · TenPoint - What nock should I use with my crossbow (FAQ)