People come up with all kinds of ways to cool a barrel using pumps and air or CO2. Some of it gets ridiculous complex. Heat up a piece of steel to where it feels hot then blow on it, see how much good that does. Then put water on it and see how quickly it cools.
Pumps or fans and air is a waste of time. This right here is stupid simple and cheap and works..... fast.
Originally Posted By: ackleyman
the part that screws on the pepsi bottle is sold at parts stores and wal mart for about $3.50. then you have the rod guide. 2 liter bottles are better.
Directions:
Insert the bore guide in the rifle, tilt barrel down. Tilt the water bottle up, let gravity feed the water through the bore, usually takes between 4-6 oz.
Run dry patches through the bore on a tight punch type jag. Dry the chamber, go back to shooting.
The whole process takes about 3 minutes from start to finish, then half that.
We have used many, many every expensive rifles with this system since 1987, best thing since a mother's love.