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thompson .222

Discussion in 'Maintenance & Gunsmithing' started by greatguy64, Jul 14, 2012.

  1. greatguy64

    greatguy64 portland, oregon New Member

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    can anybody tell me if my 222 can be chambered for 223.
     
  2. Mark W.

    Mark W. Silverton, OR Bronze Supporter Bronze Supporter

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    yes the .223 is a longer case then the .222

    On a .222 the neck starts at 35.24mm from the base

    On a .223 the neck starts at 39.55mm from the base

    SO all things being equal you should be able to ream a .222 out to .223 if I am reading the cartridge diagrams correctly
     
  3. motoman98

    motoman98 Gresham, OR Active Member

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