SpiritInfinity
Skeletron Prime
I think you are wrong there. Remember when items wouldn't stack to over 250 a while ago? That wasn't just to be a pain it was because the game just could not stack them over that number. Then they buffed it up to 999. So changing the game mechanics and all (a pretty time-consuming task I believe) just to stack to 1 more? This is just what I've heard, but I'm pretty sure it's true.A) Change the Bullet/Arrow stack caps to 1000.
Because almost everything crafts in a multiple of ten. Nothing fits nicely into 999, and it makes crafting stuff a pain. Not a HUGE deal but doesn't seem like it'd be hard to change and it would make life easier.
Ammo Pouch:
Purchasable from Goblin tinkerer (20 G)
Adds 1 extra ammo slot
Equipable
Ethereal Ammo Pouch
Crafted: 20 Ectoplasm + Ammo Pouch (At hardmode anvil)
Adds 3 extra ammo slots
10% chance not to consume ammo
Equipable
Maybe an expert mode boss drop/drops? Like the Demon Heart. Also only active in expert mode.
Overall not a bad suggestion, I can support.