Excalibur Proflight 16.5 vs Excalibur Quill 16.5: specs compared
Updated 05 September 2026.
9.9 GPI
Excalibur Quill 16.5 wins on grains per inch
On grains per inch, Excalibur Quill 16.5 leads: 9.9 GPI versus 9 GPI.
| Spec | Excalibur Proflight 16.5 | Excalibur Quill 16.5 |
|---|---|---|
| Length | 16.5 in | 16.5 in |
| Shaft weight | 252 gr | 250 gr |
| Weight | 9.0 GPI | 9.9 GPI |
| Outer diameter | .346 in | .347 in |
| Inner diameter | .300 in | |
| Fits | All Excalibur Micro crossbows, including the Assassin 400 TD | Excalibur Micro-series bows (Micro 380, Micro Suppressor, Assassin) and the TwinStrike (with Rhino nock) |
| Straightness | +/-.003 in |
Questions and answers
Which has the higher grains per inch, Excalibur Proflight 16.5 or Excalibur Quill 16.5?
On grains per inch, Excalibur Quill 16.5 leads: 9.9 GPI versus 9 GPI.
How do Excalibur Proflight 16.5 and Excalibur Quill 16.5 compare?
On grains per inch, Excalibur Quill 16.5 leads: 9.9 GPI versus 9 GPI.