This is a bullet from a used .22 casing for my paper gun that I made
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Step 1: Modify the Casing
Get a used .22 casing, and using a small nail, hammer it in the back of the cartridge making a small hole as shown
Step 2: Make Armstrong Mixture
There are already plenty of videos on YouTube how to make this mix, just grind up strike anywhere matches into a fine powder. I recomend only 5.
Step 3: Add It to the Casing
Add this mixture into the casing, compress it with a nail, and make sure some filled up the hole in the back
Step 4: Making the Bullet
Take a dowl, one a little smaller than the casing, then super glue paper around it and sand it until it is a very snug fit in the casing.
Step 5: Primer
Take the powder out of a roll cap and lay it on back of casing. Put aluminum tape over it, then your done!
Step 6: Test
For a wooden bullet, their is quite a bit of force behind it, especially for a low pressure round. You can always add up to 10 match heads which would prabably penetrate through the wood.