This is the second in a series of articles on firearms with specific reference to the…
Firearm Science – videos

Look up “Firearm Science” YouTube videos if you are having trouble with a concept. They do very short, very clear videos on all sorts of aspects of firearms. I am only picking out a few for you so that you can see what I mean.
Firearm Science – Internal Ballistics
Firearm Science – Bullet Trajectory
Firearm Science – Rimfire versus Centerfire