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Heating Difference w/Heavy Barrel?

Discussion in 'General Firearms Forum' started by glockbanger, Aug 21, 2012.

  1. glockbanger


    Dec 22, 2006
    How many more shots can you shoot in a similar amount of time shooting a heavy barrel vs a standard barrel without it heating up too much?
  2. Travclem

    Travclem Badass Member Lifetime Member

    Aug 4, 2008
    Lubbock, TX
    There are way too many variables to give an answer. How heavy/light of a barrel? What caliber? how hot are the loads? ambient temp? shot interval? How hot is too hot (just accuracy loss or permanently damaging the barrel?)?

    I don't think you will find an absolute number but remember, the longer it takes to heat up, the longer it takes to cool.
    Last edited: Aug 21, 2012

  3. banger


    Nov 8, 2005
    Where evil lives

    Also, consider the fact that when the heavy barrel gets hot...It stays hot longer.

    There really is no such thing as a "free lunch".
  4. Is a heavy barrel less likely to warp? Perhaps because it is stronger?

    I don't know, but my heavy barrel Savage doesn't seem to heat up and walk like my field barrel Savage. Could be many other factors at play.
  5. Travclem

    Travclem Badass Member Lifetime Member

    Aug 4, 2008
    Lubbock, TX
    The extra steel on the heavy barrel acts as a heat sink and keeps the bore cooler for longer.

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  6. orangeride


    Oct 19, 2011
    Match guys run heavy barrels because there stiffer. This makes them easier to tune an accurate load. My heavy barrel .338rum will get the barrel real hot is 3 shots, my heavy .223 will shoot all day and not get as hot.
  7. samuse


    Jul 30, 2008
    South TX
    I have a SOCOM bbl on one AR with a Daniel Defense rail and it'll stay cool for a couple or three mags if I shoot about a round a second or two.

    I have another AR with a gov't profile bbl with a Knight's RAS and it's almost too hot to hold by the rail after two mags at 1 round a second or two.

    But this is at 100 degrees ambient with the gun baking in the sun.
  8. fnfalman

    fnfalman Chicks Dig It

    Oct 23, 2000
    California & New Mexico, US
    Just remember that a heavy barrel may take longer to heat up, it also takes longer to cool down as well. All that mass acts as a heat sink.