Re: Barrel cooling rig
I haven't tried it yet, but I have a few cans of compressed air. They are normally used for cleaning computer keyboards or optics.
If you shake and hold the bottle upside down you get the freezing gas out of it, otherwise you can get just plain air.
Sticking the tube(comes standard) up the chamber and letting some cool air run through it has to be equally effective as water/acohol while not at all messy.
Only this to watch for might be the freezing compressed air/gas which might have a detremental effect on the barrel cooling it unevenly and rapidly.
Has anyone tried this?