I could believe it could be 150 or 200 yards, though I suspect it was as surprising as Billy Dixon's shot with a rifle at Adobe Walls.
I would think arrow weight would be a bigger factor as would bow design. I've shot modern compounds with carbon arrow and think they're doing good to go 150 yards. A recurve with a heavy arrow is likely to go farther in my experience. The Comanches weren't shooting light, carbon arrows. I also suspect they were shooting pretty heavy draw weight bows. I think English longbowmen shot that type of range with heavy arrows and extremely heavy draw weights by modern standards and they were shooting to penetrate armor and chainmail. They also, like Comanches, trained with archery equipment from an early age.
I've also read the Comanches could shoot several arrows before the first arrow shot hit the ground. Think semi-auto rifle firepower. I believe I read that in "Empire of the Summer Moon."
