Mercurial Bandolier (Patreon)

Wondrous item, rare

Locked and Loaded. You may spend a bonus action to wave a ranged weapon over the bandolier to reload it. This item creates a full round of quicksilver copies of ammunition for the respective weapon. These quicksilver bullets deal the same damage as normal ammunition and are considered magical and silvered. Ammunition formed with this ability cannot jam or cause your weapon to misfire. You must finish a short or long rest before you can use this feature again.

After many a firefight, some damned fools conceived of an item to gain an edge in  skirmishes so they might devote more time to firing bullets and less time reloading them. Many years later, this item has exponentially exacerbated the rate of death out west as bullets are never in short supply. After all, there's nothing quicker than quicksilver.