Cooling hot barrel

[Old Navy]

I do not want to cool my barrel below ambient temp.

 

[wedgy]

Wedgy, Same question as I asked Hoot. Will they run off a battery pack you use to charge your phone? I have about 4 battery packs if they work.

Yes a USB plugs into your battery and the plug that goes into the pump will also fit my Galaxy 10 phone

 

[Charlie-NY]

Wedgy, Same question as I asked Hoot. Will they run off a battery pack you use to charge your phone? I have about 4 battery packs if they work.

I use a USB "Y" adapter that is connected to my LabRadar battery. One lead goes to the chrono and the other to the cordless inflator. The inflator will last all day with the external battery keeping the inflator's internal battery charged.

 

[nmkid]

Amazon.com

I bought one of these the other day and let me tell you...This little thing really blows a bunch of air. I've tried it and it works just fine on my barrels.

 

[Hoot]

Wedgy, Same question as I asked Hoot. Will they run off a battery pack you use to charge your phone? I have about 4 battery packs if they work.

Yes. I have one Anker 10Ah pack. The Intex pump is spec'd at 2A current draw. That equates to 5 hours if you don't give it a break. I use my Anker to also power my Labradar so it would not go as long with dual use. Mine is set up using the Intex intake port drawing air from the chamber out to the muzzle. With such a small impeller, it runs at high RPM's to achieve its rated flow. With bores being small, the deal breaker is how much static air pressure any air pump will handle for a given airflow rate. Try blowing through a 2 ft long soda straw. A couple of years ago, I bought a cheap 12V canister vacuum cleaner off of Ebay for this same purpose and not only was it a shrieker, it wold not handle much resistance to air flow. What it did best was to annoy shooters on either side of my shooting position, who were wearing electronic hearing protection. Surprisingly, this 5V Intex, despite being much smaller than the 12V vacuum cleaner from Ebay, will take more resistance to air flow. The Intex sound is only mildly annoying compared to that 12V unit.

Hoot

 

[Charlie-NY]

Amazon.com

I bought one of these the other day and let me tell you...This little thing really blows a bunch of air. I've tried it and it works just fine on my barrels.

I use the same pump and it really moves a lot of air for the cost. The LED on the front crapped out after a few uses but the pump still works fine.

 

[searcher]

No, it doesn't require a great deal of water. You've obviously never used water. A few ounces through the bore is all. Hold the barrel and feel it go from hot to cool. About 15-20 seconds, that's it.

I agree. On my varmint A/R's, I have wanted to keep a certain one going - and have just held the rifle at about a 45 degree angle to the ground (action closed), and poured ice water from the ice chest right over the barrel through the hand guard, letting it run down the outside of the barrel. It drops the barrel temperature pretty fast. Maybe 1/2 gallon of water at a time. I fiddled with the air hose and small fan - which were pretty worthless in high-volume shooting, and I don't like putting water down the barrel as there are always a few drops that seem to go where they shouldn't be and that water beads up on the lubricated surfaces, making it tricky to get it all out of the places it shouldn't have gone. I think maybe the ideal thing for an A/R would be an 8" PVC pipe with and end cap on the bottom, attached to a wood stand. pour ice and water in and simply dunk the whole 2/3 of the upper in the drink for a minute, then open the action and remove bolt, swab the tube and ready to go. I think I'll try that next. Keep in mind my field rifles are, despite having top components, are still utilitarian tools. Not worried about water marks left on the tube after drying, etc. - of course distilled water could be used to mitigate that.

 

[6.5 forever]

Wow, I don't think I will introduce water to my barrels....just change rifles