Magnetospeed barrel cooler

Seandradamus

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Jun 6, 2013
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I’ll take a hot barrel over an amplified mosquito in my ear all day . I can’t stand the sound of these things at matches with my msa’s on , sounds like feedback.
Haven’t experienced that with other coolers,
I think if they could get a quiet fan it would be much better.
 

Hollywood 6mm

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Flori-duh.
I’ll take a hot barrel over an amplified mosquito in my ear all day . I can’t stand the sound of these things at matches with my msa’s on , sounds like feedback.
Haven’t experienced that with other coolers,
I think if they could get a quiet fan it would be much better.
It would also be less effective. The whine appears to be related to the high RPM on the motor, which is needed to push the volume fo air it does with such a small fan. Given the size and performance, I can live with the noise.
 

smoothy8500

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@smoothy8500 so your saying moving air that is considerably cooler through the barrel is not going to cool it down?
I meant that a heavy barrel will not cool as quickly as a "pencil barrel", and if it actually has a real benefit. The suppressor would probably benefit the most since it is thinner metal than the barrel and would cool the most.
 
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odoylerules

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I like mine. It works very fast at cooling especially when using a suppressor. The noise sucks, but cost of doing business.
 

just browsing

Gunny Sergeant
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We tested the Riflekuhl and a 60mm Chamber Chiller at the last club match. Each had fresh batteries and each were placed behind the same Kestrel wind meter for about 15 seconds. Super scientific, I know.

Both units registered 8-9mph, however only one of them made your teeth rattle.

There was also a damn army of the Riflehukls going. Sounded like a fleet of electric razors.
 

AznTactical

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🤣 Annoying as eff, so you can’t ignore them as they try to tell you you’re going to kill yourself if you don’t act fast!
Agreed, they even annoy me especially with electronic ear pro's on. On
I had my first encounter with them at a local match this past weekend.

Through my MSA Sordins, they sound EXACTLY like a low rotor RPM horn or a stall horn. 🤣 Annoying as eff, so you can’t ignore them as they try to tell you you’re going to kill yourself if you don’t act fast!
 

garandman

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Question....

How many rounds do you fire at a single session, b4 allowing the barrel to cool? Or using one of these fan contraptions?
 

odoylerules

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Question....

How many rounds do you fire at a single session, b4 allowing the barrel to cool? Or using one of these fan contraptions?
A lot of factors at play, trying to not let it get “hot”... barrel contour, what cartridge, how long until next string, how fast you shot your last string etc. During a LR prone match,
generally I use it every 5-6 rounds I’d say.
 
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briscoetab

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@garandman depends on the outside temperature, caliber and your load. If it is in the 70’s I can probably fire 15-20 rounds in 6.5cm before I feel like I need to let barrel cool. When the temperature is 90+ I’ve had my barrel heat up to it being uncomfortable to touch in 5 rounds. I have a 300 rum that will heat up in 90+ weather in 3 shots. Needless to say I don’t shot the 300rum much.
 
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spife7980

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Question....

How many rounds do you fire at a single session, b4 allowing the barrel to cool? Or using one of these fan contraptions?
These days right now Im doing load development so I fire one shot every 4 minutes or so and run the chamber chiller in between each shot. Its getting to be high 80s-100 this time of year so once its warm more than 2 or 3 will take it from warm to scorching. Without the chiller in these temps it takes twice as long for the barrel to cool to a comfortable touch.

Now could you keep shooting it hot? Sure, but its going to erode that barrel faster than it would otherwise.
 
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garandman

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These days right now Im doing load development so I fire one shot every 4 minutes or so and run the chamber chiller in between each shot. Its getting to be high 80s-100 this time of year so once its warm more than 2 or 3 will take it from warm to scorching. Without the chiller in these temps it takes twice as long for the barrel to cool to a comfortable touch.

Now could you keep shooting it hot? Sure, but its going to erode that barrel faster than it would otherwise.

Dang....I'm ROASTING my barrel, then.... :) I been shooting 1 every 30 seconds or so. I gotta slow down. :) And get one of these contraptions.
 

spife7980

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Dang....I'm ROASTING my barrel, then.... :) I been shooting 1 every 30 seconds or so. I gotta slow down. :) And get one of these contraptions.
If I cant lay the palm of my hand on the barrel in front of the chamber without the sensation of "woah, thats pretty warm to touch" then I let it cool.

In a match firing 10 shots off will get it good and hot but then it has 20 minuets to cool until the next stage. When on the bench shooting load development 50 rounds a minute and a half apart in the summer will make the barrel too hot to want to touch very quickly.
 
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garandman

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If I cant lay the palm of my hand on the barrel in front of the chamber without the sensation of "woah, thats pretty warm to touch" then I let it cool.

In a match firing 10 shots off will get it good and hot but then it has 20 minuets to cool until the next stage. When on the bench shooting load development 50 rounds a minute and a half apart in the summer will make the barrel too hot to want to touch very quickly.
Thanx. Helpful.
 

briscoetab

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If I cant lay the palm of my hand on the barrel in front of the chamber without the sensation of "woah, thats pretty warm to touch" then I let it cool.

In a match firing 10 shots off will get it good and hot but then it has 20 minuets to cool until the next stage. When on the bench shooting load development 50 rounds a minute and a half apart in the summer will make the barrel too hot to want to touch very quickly.
I pretty much use that same feel method, I haven’t figured out a good way to do load development during the hot part of the year and for some reason that is when I’m always doing it. I have two actions with two barrels each coming back hopefully in the next couple weeks. I typically don’t wait between shots, I usually load up my rounds so I’m firing 5 shots at a time in a round robin sort of pattern. Then I usually put my rifle in the truck with a/c and let it cool before the next 5 shots. So I would have something like 40 to 43 grains in .3 grain increments and would shoot 40 to 41.5 let rifle cool and then shoot 41.8-43 then I would start at 40.6 and work my way back around to 40.3. Or something like that, just depends how much thought I feel like putting into it, I figure this way each group has the full range of barrel temps. It never seemed the best way to do it to me because you go from a fairly cooled off barrel to a really warm or even hot barrel but I don’t have the patience to wait 4 minutes between shots.

I usually am just working on one load at a time, since I will have both rifles to work up loads for maybe I will wait between shots this time and switch back and forth between rifles. Plus this will be the first time that I have had something to push air through the barrel too. Waiting until the temp comes back down to around the same every time has always seemed the most consistent way to me but have never done it.
 

smoothy8500

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F-class you just accept 22 rounds in 22 minutes in a string of fire on a hot day...Practical rifle matches always seem to have a pretty good amount of time till it's your turn to fire again.
 

pineoak

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I have a Riflekuhl... I love it. Would recommend it easily.

Cuts cooling time by roughly 1/2. What is effectively doubling your rounds on a range trip worth to you?
 

b6graham

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I have a Riflekuhl... I love it. Would recommend it easily.

Cuts cooling time by roughly 1/2. What is effectively doubling your rounds on a range trip worth to you?
Until you get a second rifle. Then it becomes a major expense
 

pineoak

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one time $50 cost + $0.50 in batteries per range trip is completely worth it per rifle

for more actual shooting time

I used to bring 2 rifles to the range so that I could rotate between them (occasionally a 3rd gun, .22LR) and spend less time waiting for barrels to cool

the biggest expense for ME is the time I spend driving/prepping to get to the range; like snowboarding or other activity that requires prep and time to do the activity... the time is more valuable than the cost/$

$50 x 3 is NOT expensive for what you get for the money IMO

I think 2x per person is enough.

If you have multiple shooters in a family, the cost should be broken down by # of shooters.

the batteries are cheap
 

ormandj

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There's a huge difference between CFM and fan velocity/noise/etc. You want more CFM, as the more exchange you have the more heat transfer you have. Let's compare these units based on specifications that matter.

Also, no more cr123. What a terrible battery restriction. I've written these off just on this alone. There's no reason for that in a device like this, allow an 18650 and call it a day, it's not like the additional space is a major problem.
 
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b6graham

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one time $50 cost + $0.50 in batteries per range trip is completely worth it per rifle

for more actual shooting time

I used to bring 2 rifles to the range so that I could rotate between them (occasionally a 3rd gun, .22LR) and spend less time waiting for barrels to cool

the biggest expense for ME is the time I spend driving/prepping to get to the range; like snowboarding or other activity that requires prep and time to do the activity... the time is more valuable than the cost/$

$50 x 3 is NOT expensive for what you get for the money IMO

I think 2x per person is enough.

If you have multiple shooters in a family, the cost should be broken down by # of shooters.

the batteries are cheap
I didn't mean the coolers themselves. I meant having cool barrels on multiple rifles that much quicker. Which means shooting basically non stop
 

pineoak

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I’m good with that. Frustrating on summer days when ambient temp is over 85... and barrels just won’t get cooler

But yes, Ammo cost WILL be significantly higher 😀
 

garandman

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Also, no more cr123. What a terrible battery restriction. I've written these off just on this alone. There's no reason for that in a device like this, allow an 18650 and call it a day, it's not like the additional space is a major problem.
Yup. the Caldwell Chiller for AR15's is re-chargable. For under $50.

7094428
 

The Durk

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I did a pretty scientific test with my AI. I shot 5 rounds for load development, and took an IR heat reading gun to it. 95°F at the chamber end of the barrel, 200°F on the suppressor. I used the riflekuhl for 8 minutes. It dropped the chamber end to 77°F, and the suppressor to 95°F. I expect the suppressor to be hotter due to it being black, and in the sun. The ambient air temperature was 75°F that day. I also tested at the end of my load development, letting it cool off just by air. It took 20 minutes (19:35) to reach the same temperature range within 2-5°. I'd say a little over doubling my time at the range, or cutting my evening load development time in half, is worth it. Yes, the buzzing is a bit annoying, but that's why I shut my ear pro off between strings. I don't need to be having conversations at the gun range anyway, that's what post range dinner and drinks is for.

The only thing I don't like, is I'm pretty sure my chamber is so deep into the action on the AI, that the stem does not get close enough to seal. We tested the riflekuhl on my buddies 308 AR with no problems at all. The volume of air moved was almost double.