The right bolt for the Excalibur TwinStrike
The correct bolt length, nock and minimum grain weight for the Excalibur TwinStrike, and what stops a dry-fire.
Dry-fire warning
Crossbow bolt data and archery arrow spine, nock and thread data are quoted from each manufacturer's published figures, owner documentation and industry standards, cited on every page. A nock, spine 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 and the arrow maker's own chart before shooting, and never drop below the stated minimum total weight.
| Bolt length | 16.5 in |
|---|---|
| Required nock | Rhino nock (half-moon style) |
| Factory arrow | Quill, 250 gr shaft, 9.9 GPI, +/-.003 straightness,.347 in OD |
| Rated speed | 358 lb draw, two-arrow DualFire |
| Minimum total grain | 350 gr total minimum (Excalibur caution) |
Excalibur Quill 16.5 in carbon arrow with Rhino nock
Search Amazon for Excalibur Quill 16.5 in carbon arrow with Rhino nockaffiliate searchFind Excalibur Quill 16.5 in carbon arrow with Rhino nock on eBayaffiliateField notes
The TwinStrike is Excalibur's two-arrow recurve, the first crossbow able to fire two arrows in sequence. It ships with 16.5-inch Quill arrows fitted with Rhino nocks rather than plain flat nocks.
The TwinStrike uses a Rhino nock, which is indexed like a half-moon, so seat it square to the string. It still takes the short 16.5-inch Quill arrow, not a 20-inch bolt, and stays above 350 total grains.
Related crossbows and the nock
Sources: Excalibur TwinStrike, Quill 16.5 arrows with Rhino nocks (Archery Business) · Excalibur - Quill 16.5 carbon arrow · Excalibur - Arrows and nocks