Pennsylvania Firearm Owners Association
Page 2 of 2 FirstFirst 12
Results 11 to 14 of 14
  1. #11
    Join Date
    Apr 2007
    Location
    Pennsyltucky, Pennsylvania
    Posts
    8,076
    Rep Power
    21474861

    Default Re: rifle case trimming

    Shit, it just occurred to me that the necks probably won't fit the pilot for the trimmer correctly without being sized.
    Ummm oh well. So much for that half baked theory.
    FUCK BIDEN

  2. #12
    Join Date
    Feb 2010
    Location
    Levittown, Pennsylvania
    (Bucks County)
    Posts
    9,636
    Rep Power
    21474860

    Default Re: rifle case trimming

    Sounds like the brass is from an unknown history and some may have been reloaded multiple times and nearing scrap stage.

    Look for a bright ring ahead of the head's rim. Straighten a section of paper clip, and make a 90 degree bend at the straightened end forming a hook roughly an eighth of an inch long. Insert the tool until it touches the web, and drag it up the wall. This checks for a crack or imperfection corresponding to the bright ring on the inside of the shell.
    There are two kinds of guns. Those I have acquired, and those I hope to.

  3. #13
    Join Date
    Feb 2007
    Location
    Apolacon Township, Pennsylvania
    (Susquehanna County)
    Age
    77
    Posts
    5,797
    Rep Power
    21474859

    Default Re: rifle case trimming

    yes cases fired but unsized are shorter than the same case after sizing. So resize your cases and then check length. Set your caliper to the max length and lock, then any cases that don't pass through the jaws require trimming. It usually takes a number of iterations of firing and resizing before the cases stretch enough to need trimming. The rule of thumb I learned was to discard cases after they've been trimmed 5 times. But then I don't reload for for sooper-dooper extra magnum thumpers!


    "Those who can make you believe absurdities can make you commit atrocities".

  4. #14
    Join Date
    Jun 2010
    Location
    North Penn area, Pennsylvania
    Age
    64
    Posts
    4,664
    Rep Power
    21474854

    Default Re: rifle case trimming

    Resizing which reduced the diameter will make the length increase slightly. I always trim mine to .005 under nominal.
    I don't speak English , I talk American!

Page 2 of 2 FirstFirst 12

Similar Threads

  1. Trimming
    By Buckylou in forum Ammunition & Reloading
    Replies: 13
    Last Post: March 9th, 2019, 02:40 PM
  2. Case trimming/resizing ...
    By Rainier42 in forum Ammunition & Reloading
    Replies: 20
    Last Post: September 27th, 2010, 02:58 PM
  3. Trimming 7.62x39
    By L0ckAnL0ad in forum General
    Replies: 2
    Last Post: July 17th, 2009, 03:42 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •