BrRrRRRrrrr… The Chamber Chiller

Much of the time spent at the range can often be waiting on a weapon to cool. With semi-auto triggers able to take weapons to near cyclic speeds or bolt-action barrels needing to keep cool to protect the barrel, heat is a major problem on weapons. Its why we have handguards.

Prior to the last few years, trying to get a weapon to cool was often just letting mother nature work. While various enterprising individuals rigged up pressure-hose systems, that same entrepreneurial thought has been slowly turning into marketable products like BarrelCool, and the Caldwell AccuMax, both of which have their weaknesses.

Seeing the opportunity and a better solution is the  Chamber Chiller. Announced originally in 2015, the product has been working its way through prototyping stage and is now into beta testing, where one can actually purchase one of the products including the latest iteration, the Beta 60. As the name implies, the Beta 60 is a beta unit using a 60mm brushless fan. Power comes from four AA batteries.

With a 10.4 mm nozzle, the Beta-60 is ideal for “battle rifle” calibers and up including, but not limited to:

.22-250 Rem, .243 Win, .260 Rem, .270 Win, .280 Rem, .30 Rem AR, .300 RUM, .300 Win Mag, .30-06 Spg, .308 Win, .338 Lupua, 6mm BR, 6mm CM, 6mm Dasher, 6mm XC, 6×47 Lapua, 6.5×47 Lapua, 6.5×55 Swede, 6.5-284 Norma, 6.5 Creedmoor, 6.5 SLR, 6.5 SAUM, 7mm Rem SAUM, 7mm WSM (+More!)

For those of us shooting AR-15s and intermediate calibers, the Omega-50 is the best bet with its 8.0mm nozzle.

.22 Nosler, .220 Swift, .22-250 Rem, .223 Rem, .243 Win, .260 Rem, .270 Win, .280 Rem, .284 Win, .30-06 Spg, .308 Win, 5.45×39, 6mm BR, 6mm CM, 6mm Dasher, 6mm PPC, 6.5 Creedmoor, 6.5-284, 6.5 Grendel, 6.5 SLR, 6.5×47 Lapua, 6.8 RSPC, 6×47 Swiss, 6×47 Lapua, 7.62×39, 7mm-08 Rem (+More!)

Pre-orders are being taken now for $46.90 on the Omega-50 and $56.60 for the Beta-60. 


TFB’s FNG. Completely irreverent of all things marketing but a passionate lover of new ideas and old ones well executed. Enjoys musing on all things firearms, shooting 3-gun, and attempting to be both tacticool AND tactical.


  • rklk

    insert ‘cracking open a cold one with the boyz’ meme

    • Phillip Cooper

      Please don’t.

  • Gun Fu Guru

    I’d be more interested in a barrel warmer to avoid the dreaded “cold bore shot” when hunting.

    • noob

      could just put a peltier cooler/heater in the path of the air. It’s what’s used in those temperature controlled food chiller/heaters that people use when “glamping”.

      Not sure what the temperature range is, but if it doesn’t get hot enough you could take nichrome wire from a toaster to get hot the old fashioned way.

      Or only use cold barrel zeros for your optics and keep the barrel cold.

      • Gun Fu Guru

        Cold bore zeros take a LOT of time to achieve. I’m fortunate enough to be able to take 800-900 yard shots out my front door over to the clearing on the next hill.

    • There is a lot of argument that the cold bore shots are more mental than an actual issue with the bore being cold. As the gun isn’t as locked into the body until after the first shot.

      One ex-secret squirrel trainer (the name eludes me, he is well known but not famous/infamous) demonstrated if you locked the gun in better they will all drop into the same hole with no adjustment of your POA.

      • CommonSense23

        One of the long range instructors I worked with had two rifles to demonstrate a rifle that actually was effected by cold bore. And one that wasn’t. One rifle cold bore was the same as hot. The other actually had a left to right shift until 6 shots and it would settle in. Exact same rifles, just one barrel was a reject he kept around to show both sides of the cold bore idea.

    • Taylor Hardin

      The cold bore shot should be renamed the fouler shot. When people are “warming the barrel” they are really getting the bore dirty. This weirdly increases accuracy over a super clean barrel that has had its fair share of rounds shot through it.

  • BillyOblivion

    We are *so* lucky to live in a country where we have such excess of material wealth that people can build companies around solving such trivial problems.

  • Raptor Fred

    And all this time I’ve been using a $20 leaf blower that cools everything. And keeps little kids away from your shooting position.

  • gunsandrockets

    I would be very interested to see test results comparing some of these rifle bore air-blowing devices, vs the simple expedient of elevating the barrel to vertical with an open bolt and letting the chimney effect cool down the bore.

    I’ve seen at least one report online from a person who claimed that his own experimental air-blowing device demonstrated cooling results no greater than the chimney effect.

    • RocketScientist

      I find that VERY hard to believe. The convective coefficient you’re going to get from free convection is going to be SIGNIFICANTLY lower than the forced convection from a powered fan. Also, you run into the issue where, as the barrel cools and the delta-T between the barrel and ambient air decreases, so will the coefficient of free convection. Basically you’ll get a self-feeding cycle where the cooler the barrel gets, the slower it will cool, extending the “tails” of the cool-down significantly. With forced convection your air velocity is fairly constant, independent of the barrel temp. So while your rate of cooling will still slow as the barrel nears ambient (since heat transfer is driven by delta-T) it won’t slow by nearly as much (since the lower delta-T is not also reducing the other major variable, namely convection/air velocity). Bottom line, its almost impossible that using a forced-air cooling device won’t result in significantly reduced cool-down time versus a free convection.

  • Seth Hill

    Looks like a modified CPU cooler. LIGHT BULB!!!!! I am going to take a liquid CPU cooler and modify it to work on a rifle.

    • And at the end of it, you’ll end up with a Vickers Gun. 😛

  • st381183

    That would be a nifty idea for cooling rifle suppressors, if only to be able to pack up more quickly at the end of the day.

  • Keiichi