Not a bug report, more like "is it supposed to be this way?".
The numbers on the blowpipe seem to be wonky. For accuracy it uses the quadratic formula like sniper rifles, but here 100% accuracy is obtained with an unimpressive 52 skill in throwing. The accuracy drops after range 8, but that doesn't really mean anything as the damage also drops after range 8. It drops by 12 per tile (points, not %). Damage is 5 + 0.25*reac, so at range 9 the damage has dropped to almost half and at range 10 it's below useful. Max range (for aiming) is 16 however. I guess either the max range for aiming is off or the damage dropoff was meant as % and not points (% not supported in the ruleset as far as i know).
Production time for the blowpipe darts is also off. The poison arrows for the hunting bow which are very similar cost 150 hours for 10 packs of 16 arrows, so one arrow is ~1h to make. Blowpipe darts cost 20h to make one pack of three, so ~6h for one. That seems a lot compared to the ~1h for a poison arrow.
Lastly there is the dart pistol with the basic darts. They are almost identical in damage to the poison arrows and blowpipe darts. However, poison arrows and blowpipe darts have tu damage, while the dart pistol darts have energy damage instead. Considering the uniformity of the other damage types (fire dealing moral damage, plasma having armor damage) I thought this might be an oversight.