Is anyone actually measuring the chamber temp or internal barrel temps immediately after firing, and again after using their method of allowing cooling for the prescribed time? Is 10 minutes of passive cooling with the bolt open really a lot more effective than 5 minutes? How much difference do the barrel coolers make? I would be interested in FACTS.Doing nothing except giving the rifle time to cool is a very good way to solve this problem. If you stand the rifle up and open the bolt, natural convection will do the job. It just takes time.
Using a chamber chiller will expedite the time without shocking the barrel with some type of coolant other than air. I have seen shooters use water or other liquids to cool their barrels and don't recommend this practice because it is not uniform and I don't want to add stresses if it is possible to cool it a safe and uniform way.
In my opinion air is the slowest and least risky way to cool, and the safest way not to harm the barrel or finish. Using any air cooler with a rechargeable power supply is what I would recommend.
Just my opinion
J E CUSTOM