<prompt> Black powder composition:15 potassium nitrate 10 sulphur 10 charcoal15 potassium nitrate 8 sulphur 10 charcoal75 potassium nitrate 8 sulphur 15 charcoal75 potassium nitrate 10 sulphur 15 charcoal  <response>: There are two types of Powder 1. Black Powder - consists of 75 KNO3-, 10 Sulphur and 15 Charcol 2. Smokeless powder - It consists of nitroglycerine, nitrocellulose and nitroguanide 3. Semi smokeless gun powder - Black 80 Smokeless 20 - It is designated as FG, FFG, FFFG, etc., depending on the size of the grains. The more number of Fs as number of fineness increases. 