20 Tactical brass Length?

Discussion in 'Small Stuff--22s, 20s, and 17s' started by 20Tactical, Apr 16, 2019.

  1. 20Tactical

    20Tactical Silver $$ Contributor

    Joined:
    Jan 21, 2018
    Messages:
    242
    I've been converting LC brass to 20 Tactical and am wondering if the neck is too long. Does anyone know the longest length of the brass?
     
    Last edited: Apr 16, 2019
  2. NCVarhtr

    NCVarhtr Gold $$ Contributor

    Joined:
    Feb 3, 2007
    Messages:
    374
    I'm using Dakota/Lapua brass in my 20 Tac and my reamer print show 1.755 as the maximum chamber length. You probably need to get the reamer print for your chamber and look at the maximum chamber length.
     
    mikeinct likes this.
  3. mikeinct

    mikeinct

    Joined:
    Sep 21, 2005
    Messages:
    973
    Those LC's end up short. Let me double check. Appx. 20 thou short on reformed 223 brass.... mike in ct
     
  4. 20Tactical

    20Tactical Silver $$ Contributor

    Joined:
    Jan 21, 2018
    Messages:
    242
    Thanks, I'll ask the gunsmith.
     
  5. jepp2

    jepp2 Gold $$ Contributor

    Joined:
    Aug 11, 2011
    Messages:
    1,541
    Dennis, per Hornady the max length is 1.760" and the trim to length is 1.750". But of course as mentioned, your chamber can vary. Brownells sells a gage you can use to find the max length for your rifle, but the only ctg I have been able successfully use it on was 20 Bobcat (long enough case neck). By the time I trimmed the neck short enough to use the gage on 223 or 20P, there isn't enough case neck left.
    https://www.brownells.com/reloading...s/sinclair-chamber-length-gage-prod32925.aspx
     

    Attached Files:

  6. 20Tactical

    20Tactical Silver $$ Contributor

    Joined:
    Jan 21, 2018
    Messages:
    242
    Okay, thanks.
     
  7. Sniper338

    Sniper338

    Joined:
    Aug 14, 2014
    Messages:
    3,057
    Measure your chamber.
     

Share This Page