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  1. CARTRIDGE COLLECTING

    General Military Arms & History Forum
    Are you a Cartridge Collector? The Covid-19 pandemic has forced me to finally get around to cartridge collecting; something I had been wanting to do for a very long time. The more I get into it the more interesting and fascinating it becomes. Finding some cartridges can be very difficult so...
  2. Interchangeable Calibers

    Technical Questions & Information
    So, I know some cartridges are (for the most part) interchangeable, such as .223 in a 5.56, or a 45LC in a .410, but just how many are there? Do certain .22s work in other types of .22s? Do certain .17s fit into other .17s? Some calibers are very close to each other, and some identical, I'm not...
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