Here's an interesting page: http://www.chuckhawks.com/great_cartridge_families.htm
June 1, 2009, 02:23 PM
Go to Hodgdon or Alliants web site and check the OAL of the various cartridges listed. Anything at 2.80" or less is generally concidered a short action cartridge and over a long. There are as noted in a post above more break downs in size but these two are the std, with a "magnum" action sometimes found for extra long cartridges.
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