"Only the parts you need" is a GURPS podcast hosted by Legendsmith and EnragedEggplant. This episode's topic is low-tech ranged weapons (EnragedEggplant).
Pseudonym's Ranged Weapon Comparison Post - http://pseudoboo.blogspot.com/2016/07/fundamentals-comparison-of-ranged.html
EnragedEggplant's GURPS Blog - https://enragedeggplant.blogspot.com/