Air in a can to cool barrel?
- Thread starter mattri
- Start date
[br]bdale said:
The barrels are not real hot and the mediums proposed are not real cold. Heat treated steel is generally unaffected by rapid cooling unless it is over the tempering temperature. Most rifle barrels are tempered at around 650°F. Our barrels get nowhere near that. I've shot machine gun barrels to red heat, which is in the range of ~750°-1100°F. That will affect the barrel's material condition.
mattri-
Been there, done that, CO2 in liquid phase (bottle upside down). Works fast using the phase change, liquid turning to gas inside the barrel, don't work worth a darn just straight gas. Just like in an air conditioning unit, its the phase change that does the work. Uses lots of CO2, barrel stays dry if you don't let it get so cold moisture condenses. Make a fitting with a 90 deg hose connection you stick in the chamber and hold in lightly with the bolt. Needs at LEAST a (2x)10 lb to 20 lb bottle to be worth taking on PD trips.
Been there, done that, CO2 in liquid phase (bottle upside down). Works fast using the phase change, liquid turning to gas inside the barrel, don't work worth a darn just straight gas. Just like in an air conditioning unit, its the phase change that does the work. Uses lots of CO2, barrel stays dry if you don't let it get so cold moisture condenses. Make a fitting with a 90 deg hose connection you stick in the chamber and hold in lightly with the bolt. Needs at LEAST a (2x)10 lb to 20 lb bottle to be worth taking on PD trips.
Something should be developed to keep the barrel cool not cool it down after its hot. If you could keep a towel on it or have like an air jacket or water jacket that keeps it in the sweet spot temperature wise then we would really have something. If we could keep the weight down of course.
I dont know the solution but I sure wish there was one. Heck, I'm not in the deep south, just PA, and after six shots in my .243 I have to wait almost ten minutes to shoot again. guess I need to start taking another gun to alternate. Just love shooting and get ipatinet with waiting...especially when working up new loads and needibg to do lots of shooting.
STS
Silver $$ Contributor
The water jacket method has been done before. I can remember seeing a set-up probably 20 years ago that was designed to cool a barrel. With the fittings, hoses and water source, the thing had to be a huge pain in the butt and more trouble than it was worth. It would have taken far more time to set it up and take it down to move locations that it would have been far more efficient to cool the barrel by more conventional methods.chevytruck_83 said:
what if there were holes lengthwise in the barrel like those found on the end vias break. Surely there is enough metal in some of these huge bull barrels to do this. then some sort of barrel nut assembly that was ported in someway to an air fitting which could be used to pull air through the barrel. the weight be it a pump or fan whatever could be left on the bench essentially not effecting the weight.
xs hedspace
hippie redneck geezer
From a science perspective, the liquid CO2 into the bore would do the best job, if you can afford the cost. A picnic cooler, ice water, and a tube and funnel would do a good job. Just run a dry patch through after the barrel feels cooler. Water absorbs lots of BTUs.
I have used the whole Co2 thing. i spend lots of time in the rocks with my Bronco. I carried a Co2 tank to air the tires back up from 5 PSI to 20 or 30 for the hiway. Hooked a tank up to a bore guide. Works great!!!!
But, just remember one thing. What is it that atracts mosquitos and other pests???
Probably not a big deal in the desert, but for the rest of you........ 
But, just remember one thing. What is it that atracts mosquitos and other pests???
Probably not a big deal in the desert, but for the rest of you........ 
Might also be able to use some of those alcohol wipes that diabetics use on their skin. They are sold in drug stores by the box, are very portable, and are nearly the same size as a cleaning patch.
You can build a barrel cooler with a small igloo cooler, plastic ice packs, battery operated liquid transfer pump, bore guide, plastic tubing and rubbing alcohol. Fill the cooler with the alcohol and put rubber ice packs in. Then put one end of the transfer pump in the cooler and attach the other end to the bore guide and insert it into the chamber. Then slide one end of the plastic tubing over the end of the barrel and put the other end into the cooler below the gun which should be in a cradle with muzzle pointing down slightly. Turn on the pump and it will cool down in a minute or two. Run a patch through and you are good to go.
Just an idea. For those with time and money. LOL
Flute the barrel, cover it with a thin walled Aluminum tube a few inches
longer than the barrel.
Upon firing ,the blast wave would pull ambient air through the flutes, cooling
the barrel just like the old Lewis guns.
Regards,
Steve
Flute the barrel, cover it with a thin walled Aluminum tube a few inches
longer than the barrel.
Upon firing ,the blast wave would pull ambient air through the flutes, cooling
the barrel just like the old Lewis guns.
Regards,
Steve
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