The Endless High Velocity Pouch is a Hardmode item that acts as ammunition, and can be placed in the Ammo slots in the player's inventory. While in the user's inventory, it acts as a single High Velocity Bullet that can be fired from any appropriate Gun without being depleted. Guns with unique shot types will fire their special shots indefinitely.
Crafting the Endless High Velocity Pouch requires 4 full High Velocity Bullet stacks (999 each).
The Endless High Velocity Pouch follows the same ammunition priority rules as other ammo types. If held in the inventory, bullets in the dedicated ammo slots will be fired first, followed by those further up and to the left in the player's inventory. While in the ammo slots, those above it will be fired. Players can use this to quickly alternate between infinite and special ammo.
The cost of 3996 High Velocity Bullets is no value. There is no profit in producing Endless High Velocity Pouches for resale.