CT!: The Costs of War
Although there are small variances in bullet calibers and the amount of powder grain used in the cartridges of western Immoren, most weapons accept one of the three standard sizes of cartridges: light, heavy, and slug rounds. Light rounds are those used in most pistols and rifles; the circumference of a light round is less than half of an inch. Heavy rounds are found in heavy rifles, hand cannons, and mounted antipersonnel weapons. The circumference of a heavy round is over half an inch and creates a great amount of trauma as it travels through a target. Slug rounds are about fifty percent larger than a heavy round and transfer a tremendous amount of energy to the target upon impact.
Some weapons are also armed with shot. Shot is a collection of bullets that sits on top of a charge and is driven forward when the charge is ignited. The shot usually disperses, creating a larger diameter of impact in the target along with multiple entry wounds. This delivers a lot of trauma to the target in multiple places. The average shot round is the same size as a slug round.
Firearm ammunition in the Iron Kingdoms is either paper- wrapped or metal-cased. Both types of ammunition include a bullet, casing, and silk-wrapped packets of the two components of blasting powder. Paper cartridges are more fragile than metal-cased rounds but have the advantage that they can be assembled by hand on the battlefield and do not require any special equipment to press.
A character with the required materials and either the Pistol or the Rifle military skill can hand-wrap his own ammunition at the rate of five rounds per hour. A character who chooses to wrap his own ammunition gets enough materials to make twice as many rounds as he can purchase ready-made for the same cost. For instance, a character who spends 2 gc for the materials to make light ammunition rounds gains enough materials to make ten rounds of ammo, whereas he could purchase only five ready-made rounds for the same amount.