Greetings...
Many years ago when I lived in Brazil, I heard that some of the interior people would simply chop up some nails and tie them in a handkerchief. An undetermined amount of powder,yeah -- that looks about right, and ram the "package" down the barrel. This was used for chicken thieves. You may not want to try this. I have personally never seen it, so it may just be :bull: . However, I did hear of it from several different sources, so there may be some truth to this rumor.
"When you see the smoke on the wind, look for me."