Thread: Anyone here still shoot a 222rem Magnum?

Originally Posted by Fee Knicks

Iirc - the 222 Mag was based on the 5.56 long neck , full length brass Blank case

You say what???? My understanding of it is the 222 came first and the 5.56/223 and 222 magnum were later,the magnum came first but both were viing for the USA military contract.the 5.56 won and rest is history. So the 5.56 was more likely made from magnum brass than the other way around.