The shell casings are a type of ammunition packaging, a reloading component. Ammunition is something that can be directly fired, a bullet, not the cartridge. Laws regarding such vary from state to state.
It depends. In most states, no. However in some, any part of "ammunition" is considered ammunition and requires a license to possess. This includes shell casings. The state of MA has this requirement, for example.
Shell casings were made at Frank's house... Frank the turtle is an excellent shell maker... Just look at his.... :)
Some were.
During the Vietnam War, US Army M48A3 Patton 90mm tank shells were about $200 per round; those with all brass shell casings firing HE (High Explosive). In 1970, most of those brass shell casings were transitioned to non-brass metals (cheap metals).
Shell casings are typically either brass, steel, or aluminum.
During WWII copper was needed for ammunition in the form of shell casings and bullet jackets. In 1943 the mint made cents from scrap steel to save as much copper as possible for the war effort.
You're almost certainly thinking of the cents minted from 1944-46 called "shell case" cents. They were struck from ammunition shell casings (not bullets) that were recovered after the shells they contained were fired in combat. And that was WW2, not Vietnam, of course.
To collect your spent shell casings.
Some states require it.
None. Officer Tippet was killed with a revolver - no shell casings were ejected.
Duty, honour, and country.
US cents were never made out of rifle casings themselves, but they were made from shell casings during 1944 and 1945. These coins were of course called "shell-casing cents".In 1943 the Mint struck cents in plated steel to save copper for use in ammunition. The steel coins were unsatisfactory in almost every way - they were confused with dimes when new, after a while they either rusted or turned an ugly gray, they didn't always work in vending machines, etc., etc. As the war turned in favor of the Allies there was so much spent ammunition that the government was able to divert some of the scrap for use in coins, so starting in 1944 coinage of bronze cents resumed.