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economy barrel cooler

Discussion in 'Rifle Country' started by Jughead88, Sep 13, 2016.

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  1. Jughead88

    Jughead88 Member

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    I thought some of you might get a kick out of this! It really helps keep the barrel cooler on my 225 viper. I usually chamber it for 2-3 minutes between shots at the range. normal old walmart bait bubbler. drilled the primer pocket out on one of my old cases, and shoved the air hose in all the way to the neck. Just chamber it like a live round, turn it on. I pull it out by the hose and shoot again! This may not work too well on a bigger bore, but it gets fair airflow down a 22 bore. 50 grains of Win 760 down this barrel gets warm in a hurry without it. Got 40's running 4,500 though.
     

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  2. WestKentucky

    WestKentucky Member

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    Nifty. What rifle do you run it in, and where do you get power?
     
  3. Jughead88

    Jughead88 Member

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    I built it on a TC encore platform, so it is pretty easy to take in and out, but it should feed into a bolt gun fairly easy also. It runs on 2- D batteries. I got the idea from keeping crappie shiners alive on hot days!
     
  4. Wreck-n-Crew

    Wreck-n-Crew Member

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    I love it! Think ill give it a whirl. Thanks for the idea.

    Sent from my LGLS991 using Tapatalk
     
  5. Jughead88

    Jughead88 Member

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    Your welcome! I thought it might help the PD shooters with their swifts and short mags.
     
  6. JimKirk

    JimKirk Member

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    I just use one those 12 volt air mattress pumps that plugs into the lighter socket ... the one I got has a hose with a tapered end that will fit many chambers ... it doesn't take long with the flow rate that this thing has ...

    I know someone will ask where you plug it in ... I have my own 100 yd range in my yard and I have my JD Gator there always and it has a 12 v outlet ... the pickup would work too ...
     
  7. Bart B.

    Bart B. Member

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    One of these days, a rifle company will figure out that fixing the common problem of barrels bending from heat and putting bullets some direction from point of aim is a good idea. They could do it easily and cover all costs and make a profit for an extra $50 to $60 per rifle. Once set up on their receiver production line, it would take 5 to 10 minutes labor each.

    The solution could also easily make more sales when their ads mention that rifle doesn't have the shot impact walking as barrels heat up.

    How many of them know what the cause is and what they need to do to fix it? Like gunsmiths, some don't. Most rifle shooters don't know, either.

    Once done but the barrel still walks shot impact as it heats up, then the barrel's not stress relieved.
     
  8. LoneGoose

    LoneGoose Member

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    Bart B., I'm no gun mechanic, but what you wrote has piqued my interest. How is a barrel stress-relieved? What's the process?

    Thanks. THR rocks.
     
  9. Acera

    Acera Member

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    Bart B, you talking about cryogenic stress relief???





    .
     
  10. ironworkerwill

    ironworkerwill Member

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    Stress is caused by button rifling among other things. The most effective way to stress relieving is to heat the barrel up to just below its transformation stage. The crystalline structure then becomes more uniform.
     
  11. Bart B.

    Bart B. Member

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    I think cryogenic stress relief is a good icing on a good cake of normal stress relieving mentioned above. It "freezes" the steel structure a little more so it stays stable overs greater temperature range as the barrel heats up faster.

    Kreiger Barrels web site explains it well. I've worn out a few Kreiger barrels and they've never walked shot impact over 25 to 30 shots fired 20 to 30 seconds apart.

    Properly stress relieved barrels fit to correctly faced receivers don't change the various frequencies and directions they vibrate at as they heat up and keep the same grain structure. Poorly fit ones have a stress line at their tight spot on the receiver that ends up pointing the muzzle axis at the wrong place at bullet exit.
     
    Last edited: Sep 15, 2016
  12. Corn-Picker

    Corn-Picker Member

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    What is a 225 Viper -- a Google search revealed nothing so I'm guessing it's a rare wildcat of some sort?
     
  13. amlevin

    amlevin Member

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    Want to improve it's efficiency, add a coil of copper in the line and put the coil in a small styrofoam case filled with ice or frozen "gel" blocks. Especially good if the ambient air temp is up near 100 degrees.
     
  14. ironworkerwill

    ironworkerwill Member

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    Canned air works good. Especially it it has a straw with the bottle.
     
  15. PCFlorida

    PCFlorida Member

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  16. farmerboy78

    farmerboy78 Member

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    I don't have that cartridge, but I do have a .22 middlestead. It uses .243 win brass and in turns shrinks the neck down and reshapes the shoulder angle. I am getting right at 3400 fps with 75gr berger vld bullets over 43 gr of imr 7828. This combo will put whitetail deer down really hard.
     
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