How A Firearm works – animation by Skallagrim
Explanation of what happens when you pull the trigger of a handgun. https://www.youtube.com/watch?v=rJMXXuGhINE
Firearm Science – videos
Look up "Firearm Science" YouTube videos if you are having trouble with a concept. They do very short, very clear videos…
Basic Ballistics – video
A YouTube video by MarkandSam AfterWork discussing the basics of ballistics. https://youtu.be/d9lf9D9OxaE
