Cartridge Safety
Cartridges are to be made with a good quality paper that can resist accidental ignition by a stray spark, but can also be easily torn with your teeth. NOT newspaper
The recommended size of a blank load can be calculated by adding the caliber size of the firelock plus 5 and using the result in grains. For a Brown Bess, this would be 75 + 5 = 80 grains of powder for the load.In volume, this is 5.3 cubic centimeters or 1.1 teaspoons.
The regulations of the Brigade of the American Revolution state that the maximum load for a 75 caliber firelock is 110 grains of 3F powder. This is about 1.5 teaspoons in volume.