Awespec
really liking the book, however as a fan of black powder firearms [not sure if it'll be important later but who knows] the different guns especially in the times of the Spanish conquistadors (they used match-locks) each gun would inherently way different amounts as they were hand made not factory-made. the only way to check a load is with a marked ramrod (a stick attached to barrel to load the gun) or by simply firing it.