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223 Based Wildcats

Discussion in 'Caliber Corner' started by jaybirdjtt, Jan 31, 2010.

  1. I've become interested recently in the 300 Whisper which is basically a 221 Fireball necked up and fire formed to a 30 caliber. It can be loaded subsonic and can be quite accurate, supressed and powerful with it's large 30 cal, 220 grn bullet leaving the muzzle @ 1070 fps or less. It can also function through an AR-15 mag. Fascinating.

    So, does anyone have a list or knowledge of wildcat cartridges that begin life with the 223 cartridge case.
    Just curious.
     
  2. marvin

    marvin sci-fi nut

    763
    6
    Mar 26, 2001
    greentown ind.
    .223 AI
    6mm TCU
    25 TCU
    6.5 TCU
    7mm TCU
    i'm sure there are others, but these are what comes to mind right away
     


  3. Tony Rumore

    Tony Rumore

    481
    58
    Nov 2, 2000
    OK, USA
    One of the best varmint rounds is the 20 Tactical, predecessor to the .204 ruger. It's a .223 necked to 20 caliber with the shoulder bumped back just a hair. It will launch a 32gr bullet at 4,300fps from a 25" AR-15 barrel.
    The Hornady 32gr bullet was the only bullet available at the time. After the 204 came out, Hornady dropped the 32gr in favor of the 33gr.

    Tony
     
  4. Holy Velocity, Batman! I dream of winning the Lotto just so I can justify buying one of every wild cartridge out there. That bugger would reach out there in a hurry. What intrigued me with the 300 Whisper is that it is a supressed, powerful round and reputed to be super quiet and very accurate. Downside...... so much drop that you have to know exactly how far away your target might be. 220 grn bullet with a subsonic MV of 1070 fps.
     
  5. Only other ones I can think of is the .17-223, the 6x45 (almost identical to the 6 TCU), and the .338-223 Straight.
     
    Last edited: Feb 2, 2010