Get a piece of 1/2" hard copper pipe about 6" longer than your bore and a 1/2" hardwood dowel to use both for forming the foil bag and pushing it into the chamber. Form the foil around the end of the dowel, pour powder into foil cylinder, close open end, place bag in tube, place tube in bore against chamber, push bag through tube into chamber with dowel. Works great for my 1" chambered Parrott.