I use goex 1F in my 20 pound mortar, as that what i first used, will try some Schutzen, as it is lower cost. I use Schutzen, 1f/ 2f in my cannons, one is a 1.25 in bore 2 are 1.5in bore because of cost(2 to 4 ounces)depending if live fire or blank, ,i can burn up to 3 pounds a day. I have even...