About bows draw weight, it varied depending on what you used it for. Typically it was at best 70 pounds, which is still a damn lot for someone that supposedly sword is too heavy, but those were the bows that were used for hunting things like normal and mid prey, or just shooting peasants some to kill the boredom. The 100+ were warbows, designed and used for piercing armor (disclaimer, even still it didn't just go through a piece of hardened steel and thick cloth underneath like a paper, but otherwise fully armored knight was almost only vulnerable where there were joints in the armor or the helmet visor.) Also, bows and swords use a little different set of muscles, to draw a bow your back plays much of the lifting.