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Over Heating

SixStringerSixStringer Member Posts: 131 ✭✭✭
edited May 2002 in Ask the Experts
I've read that you want to be careful about how many rounds to put through your gun at a time. The claim is you will get yur gun too hot if you shoot without letting it cool. Is their a real worrie about this?
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Comments

  • MIKE WISKEYMIKE WISKEY Member Posts: 10,035 ✭✭✭✭
    edited November -1
    IF THE STOCK STARTS TO SMOKE YOU ARE SHOOTING TO FAST. SERIOUSLY, IF THE BARREL GETS TO HOT ACCURACY (PRCISION) WILL SUFFER. BARREL WEAR WILL NOT BE APPRECIABLY EFFECTED UNLESS YOU ARE GOING FULL AUTO (PERSONAL EXPERIENCE, VIET NAM, M-1919A4 & M-60). WHEN YOU START THROWING SPARKS YOU ARE LOOSING RIFLING.
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  • Shootist3006Shootist3006 Member Posts: 4,171
    edited November -1
    There is a concern that allowing the barrel to get too hot will increase throat erosion (most seem to concur and it makes sense to me). Point of impact may also change as the barrel heats up (unless it is truly free floating) as thermal expansion will cause stock and /or receiver stress thus shifting POI.

    Basically, what you are doing (other than maybe having fun) is wasting lead. Hard to practice or learn anything when you don't know what is happening to the POI.

    Quod principi placuit legis habet vigorem.Semper Fidelis
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  • SixStringerSixStringer Member Posts: 131 ✭✭✭
    edited November -1
    I havent even shot my gun yet. I'm not doing anything until I find out everything I need to know.
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  • badboybobbadboybob Member Posts: 1,658 ✭✭✭✭✭
    edited November -1
    What MikeWhiskey said. If you want your barrel to last don't shoot a full 40 round mag in 10 seconds. I gets too darn hot and will burn out. Helicopter crews in 'nam carried extra barrels for this reason. I was once a tactical air coordinator on a mission where a CH-46 crew burned out 7 barrels extracting recon Marines. They were in some deep *, but the Marines came out without a scratch.

    PC=BS
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  • rsnyder55rsnyder55 Member Posts: 2,526 ✭✭✭
    edited November -1
    On a more practical note, if the barrel is allowed to get too hot, it will change the point of impact on some rifles.

    My 300 Weatherby with the light bareel will put the first three shots touching at 100 yds, but the fourth will high and to the left 4".
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  • joeaf1911a1joeaf1911a1 Member Posts: 2,962 ✭✭
    edited November -1
    rsnyder55: Right on the money. A hot barrel will start walking
    shots. Hotter means worser. However the day of "spray and pray is here". When I fired competition with my Rem. 40X .308 even in the
    N.M.C. rapid fire section, after the 6th or 7th round the group enlarged. Possibly either co-efficient of metal expansion or change
    of barrel vibration. In slow fire we used all the time allotted for
    barrel to cool between shots.
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  • NighthawkNighthawk Member Posts: 12,022 ✭✭✭
    edited November -1
    There is not much left to say these guys sound more than qualified to answer your question. I can sure tell you you can ruin a good barrel by overheating it. AS the U.S. military use water to cool the barrels of some of there mounted machine guns.However when breaking in a new barrel some advise to shoot the rifle until the barrel gets hot,not overly hot. Then clean the barrel and repeat the process about three times. IT works for me, and it is good for accuracy as well. Hope this helps.

    Rugster
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  • kimberkidkimberkid Member Posts: 8,858 ✭✭✭
    edited November -1
    At the last gunshow, I saw a gal with short-shorts and tight top holding an AUG ... I was overheating ... that was some AUG

    =================================
    Sometimes the most obvious, is the most elusive!kimberkid@gunbroker.zzn.com
    If you really desire something, you'll find a way ?
    ? otherwise, you'll find an excuse.
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