Quantcast
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Do you all trim 9mm brass?

Discussion in 'Handloading and Reloading' started by Matt Dillon, Jan 30, 2013.

Thread Status:
Not open for further replies.
  1. Walkalong

    Walkalong Moderator

    Joined:
    Nov 20, 2006
    Messages:
    47,508
    Location:
    Alabama
    I do trim mixed revolver brass for more uniform crimps. I do not trim it if I buy a big batch of one brand which is very uniform in length.
     
  2. emb

    emb Member

    Joined:
    Aug 16, 2007
    Messages:
    175
    If you do, you'll only do it once! It is not worth the effort for target loads and makes no difference at all in how it performs.
     
  3. Trent

    Trent Resident Wiseguy

    Joined:
    Dec 6, 2010
    Messages:
    17,941
    Location:
    Illinois
    Nope. I've never had to trim 9mm, 45, or any other straight walled case.

    I've actually measured it getting SHORTER over generations of loading. Not longer.
     
  4. Trent

    Trent Resident Wiseguy

    Joined:
    Dec 6, 2010
    Messages:
    17,941
    Location:
    Illinois
    THAT is not a bad idea. :)

    I just started getting in to revolvers, previously only loaded for autos. But what you said makes a heck of a lot of sense for magnums.
     
  5. SSN Vet

    SSN Vet Member

    Joined:
    Jan 3, 2006
    Messages:
    5,783
    Location:
    The Dark Side of the Moon
    another 'no' response here.
     
  6. ranger335v

    ranger335v Member

    Joined:
    Dec 3, 2006
    Messages:
    3,797
    I only trim rimless handgun cases if they're too long and that's rare; reason is that they headspace off the case mouth so making them shorter doesn't do anything good.

    The 9mm really doesn't need "crimping" anyway, all you need to do is remove any flare you may have done and return the mouth to original diameter so it will feed, chamber and lock easily.
     
  7. Steve in PA

    Steve in PA Member

    Joined:
    Dec 29, 2002
    Messages:
    2,569
    Location:
    NE PA
    Been reloading for over 22 years, never trimmed a piece of handgun brass in all those years.
     
  8. Slamfire

    Slamfire Member

    Joined:
    Dec 29, 2006
    Messages:
    7,646
    Location:
    Alabama
    Nope. Don't trim pistol brass.

    Trimmed 44 Magnum brass to use in a M1894 Marlin rifle. Did not make any difference there either.
     
  9. rikman

    rikman Member

    Joined:
    Jan 3, 2004
    Messages:
    822
    Location:
    People's Republic of IL
    Sage advice Fred lol
     
  10. mljdeckard

    mljdeckard Member

    Joined:
    Jun 5, 2006
    Messages:
    12,738
    Location:
    In a part of Utah that resembles Tattooine.
    I'm still a rookie, and I don't know which rules I can bend, so I'm pretty cautious. I sample check cases for length, but I have not yet needed to trim any 9mm or .45 cases. Based on what I have read here, I doubt I will. If I get an odd occasional one that has stretched, I will probably just chuck it.
     
  11. Trent

    Trent Resident Wiseguy

    Joined:
    Dec 6, 2010
    Messages:
    17,941
    Location:
    Illinois
    You'll split the necks from work-hardened brass way before you ever need to think about trimming them.

    Although I don't track pistol brass by generation, I've got some 45's that are sitting at 15x by now, I'm sure. Every once in awhile I'll have a bullet split the case neck. I pull the bullet with my fingers, pour the powder in the hopper, toss the round in a 45 and pop the primer. Then chuck the ruined brass in the recycle bin. Doesn't happen very often, and I've got some old WWII surplus that's been run through the autos so much the rim is nearly ruined from extraction. :)
     
  12. ReloaderFred

    ReloaderFred Member

    Joined:
    Apr 28, 2005
    Messages:
    5,863
    Location:
    Oregon Coast
    As plentiful as 9x19 brass is, there's no need to even consider trimming it. I'm looking at buckets full of it in my garage, and the thought of trimming any of my handgun brass gives me the shivers. I'd rather spend the time loading and shooting.....

    Hope this helps.

    Fred
     
  13. floydster

    floydster Member

    Joined:
    Jan 13, 2008
    Messages:
    1,634
    Location:
    Central, Mn.
    Me no trim pistol brass eder.

    Smokeyloads
     
Thread Status:
Not open for further replies.

Share This Page