The items in this post are things I'm fully comfortable with, objects I handle very often and know how to use with devastating effect but so many people see these items as mysterious, things to be feared and shunned even; I get it, people fear what they don't understand and these are things many people are unaccustomed to.
In this post you'll see a few different types and calibres of ammunition including 6.5mm Creedmoor (for rifle) a .50 calibre belt (chain link for a machine gun) and .243 rifle rounds. There's a shot of 9×19mm Parabellum rounds for handgun use, a rifle primer (with my finger on it) and a 6.5mm round showing the primer in the primer pocket.
Dangerous things? Yeah of course, but only if used in that way and mostly they sit around doing nothing at all.
These are all centrefire rounds meaning the primer is located in the centre of the round (refer to the very last image). The rifle/machine gun/handgun's firing pin strikes the primer in the centre which causes a small explosion which makes it's way into the case holding the gun powder (through the flash hole) causing the gun powder to ignite. The resulting explosion causes gasses to expand which ultimately pushes the projectile out of the case, down the barrel, out the muzzle and down range to hit its intended target. Simple stuff really. It's those gasses that force the bolt backwards (in a semi or automatic firearm) ejecting the spent case then closes back up after advancing a new round into the chamber.
I've presented these in black and white for no particular reason other than that I think they look cool with no colour.
Design and create your ideal life, tomorrow isn't promised - galenkp
[Original and AI free]
Every image in this post is my own.