Generally, modern ammunition comes in two variants, the centerfire cartridge and the rimfire cartridge. Most ammunition today are center fire which make it the most common. The centerfire cartridge has its primer...
We went to Google to answer some of the frequently asked questions. Of course I'm not lawyer, or "expert", I am just a go who is involved with the business or firearms.
https://www.youtube.com/watch?v=drPz6n6UXQY
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