Track of the wolf has those plunger fittings for sale so you can put one on your own antler, or whatever other container you would like to use to hold your priming powder. I have a very small priming horn that serves the purpose.
I am hoping he is talking about granules, ( or kernals) and not actual 3-4 grains of powder.
Yes, you can put your vent pick, or a toothpick in your touch hole to keep powder from blowing out the vent when you are seating the PRB on the powder. ( or an OP wad, or filler, on the powder). Since you need to open a hole into the main powder charge so that your priming powder's flame and heat reach more than one granule at the opening of the vent, putting your pick in the touch hole before pouring in the powder must makes good sense. I have a bad habit of dropping and losing my vent picks, so I have tied my pick to my bag strap, and can't be putting it into the vent while loading the rifle. I close the frizzen, and that generally keeps the amount of powder that might be blown out of the vent to a minimum. Depending on the lock, and the shape of the frizzen, and the relative location of the vent hole to the frizzen, that may not work in other guns. Use a separate pick, or toothpick( they're cheap) to plug your vent.
