Hey Caribdis, I wanted to let you know about something. When you show the sniper rifle firing, it shows the entire cartridge being fired. Look up in google the parts of a cartridge, only the "bullet" part is actually fired, the casing is left behind because it simply holds the charge that pushes the bullet out. Since that looks like a bolt-action rifle the casing shouldn't eject either, so it would simply stay inside the rifle until the shooter cycles it.