I had one on a Martini Cadet action.It was accurate and nice to shoot with.From memory I used .222 Rem dies and a shell holder in a pistol caliber.
I ended up having it chopped and rechambered in .218 Bee for no good reason other than I had a Sako Vixen in .222 at the time.
https://en.wikipedia.org/wiki/.222_Rimmed
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