Some players have given negative feedback on Stonethrower.
They lost the power to take down units, and the reduction in pierce armor made archers very vulnerable. In tests I did, 50 basic rank archers without an upgrade can take down a stonethrower with just 9 shots.
I tested it on some mp games and it really is true. Elephants are much more viable than stonethrower, can down soldiers, buildings and basically a siege counter.
Basically without being able to down units, Stonethrowe are super units that can be used with all types of units.
Yes, archers must be a little nerfed, but I don't believe in a nerf in damage, just in accuracy, so the power will be basically the same against Stonethrower.
Increasing health seems to be the best alternative as it also increases your resistance against elephants and other melee units.
The increased range means that catapults can fire more safely mainly vs archers. Archer has 60 + 10 (tech), so it's very close to the current number.
Patch proposal:
Stonethrower range from 80 to 100. Same to Quinquereme for consistency.
Stonethrower increased health by 50%.