Discussion in 'Technical Articles - Discussion' started by ADMIN, Jul 30, 2017.

Barrel Life: A Screed of Old Standby & the Math of the Matter

When you talk about “barrel life”, exactly what you are talking about is of paramount importance but isn’t clarified by the simple words “barrel...
Rating:
4/5,
  1. ADMIN

    ADMIN Administrator

    Messages:
    1,153
    Joined:
    Mar 6, 2008
  2. kenfairley

    kenfairley New Member

    Messages:
    1
    Joined:
    Mar 1, 2012
    Where do I find kilojoules per kilogram for powder?
     
  3. BallisticsGuy

    BallisticsGuy Well-Known Member

    Messages:
    232
    Joined:
    May 8, 2016
    That data is generally pretty easy to get directly from the manufacturer with a quick phone call or email. Honestly it's not easy to find online nor is what you find online going to be 100% reliably accurate so you really need to pick up a horn and push some buttons.

    That said, a really quick google search yields voluminous data. Alternatively, I hear QuickLoad has this data.

    Some quick links I've googled for you with useful data:
    http://www.leroyrifleandpistolclub.org/powder-heat-potential.html

    http://castboolits.gunloads.com/showthread.php?297491-A-different-type-of-powder-chart Post #5
     
  4. pescado

    pescado Member

    Messages:
    11
    Joined:
    Jan 8, 2015
    Thanks for the article. I have to question one thing though. Your assertion not to shoot a barrel hot. What scientific evidence is this based on? This is something that is often mentioned but never backed up with cold non emotional fact. What is hot? Too hot hold your hand on is likely to be over 60 Celsius or there about. Will that really bother steel? When shooting some matches with 10 shoot strings putting aside your hot rifle is not an option. Has anyone tested throat wear for two rifles one shooting long hot strings and another the same number of shots over a longer cooler period.
     
  5. BallisticsGuy

    BallisticsGuy Well-Known Member

    Messages:
    232
    Joined:
    May 8, 2016
  6. shaughn

    shaughn Well-Known Member

    Messages:
    85
    Joined:
    Oct 30, 2014
    There is a lot of data amongst Service Rifle Class shooters about throat erosion and barrel life.

    Some of the old data generated is no longer a rule of thumb in part due to the steels used in barrels today, go to Schuemann barrels (they do barrels for competition 1911's) and they discuss how rate of fire can affect the steel and how some cleaners and the cleaning regimen actually make the situation worse.

    It makes for an interesting read.

    Look under documentation
     
    Last edited: Aug 16, 2017
  7. Don A Parsons

    Don A Parsons Well-Known Member

    Messages:
    133
    Joined:
    Aug 12, 2016
    Standard thought for match grade barrels.

    If you want to be in the top 1000, then it's wize too do your round count till the target grouping falls apart.

    Once this happens you'll know next time how long a barrel will last.

    Getting into the top 10,,, your homework will be in action before its shot out.

    Don
     
    Last edited: Aug 16, 2017