barrel cooling

[Kings X]

12volt fan motors. Hole bored under chamber area.
I have now omitted the switch and glued the battery holder outside the stock. Just snap battery in before the string starts. Battery life is short and I kept forgetting to turn it off.

 

[Kings X]

Fans were bought online from Jamco

 

[Kings X]

I have fluted the barrel around the chamber area. And have bead blasted only that area. Plus the stock has side vents only at area of chamber.
Hope this answers the OP questions.

 

[Wazizit]

After using the Barrel Cool for years and tired of buying those expensive batteries. I decided to make something better. I took a $5 ammo can from Atwoods, a 12v fan out of a doa computer and some tubing I had in the barn. I use this on my 22-250 to my 338. This thing puts out some air. I hook it to a 12v lawnmower battery. Anybody else have something similar or better let my know. This is just version 1.0 The tube fits all my bore guides If it's real hot I stick it in an ice chest.

 

[Jeff A]

After using the Barrel Cool for years and tired of buying those expensive batteries. I decided to make something better. I took a $5 ammo can from Atwoods, a 12v fan out of a doa computer and some tubing I had in the barn. I use this on my 22-250 to my 338. This thing puts out some air. I hook it to a 12v lawnmower battery. Anybody else have something similar or better let my know. This is just version 1.0 The tube fits all my bore guides If it's real hot I stick it in an ice chest.

Do you have a way to funnel the air to those tubes?

 

[Wazizit]

Do you have a way to funnel the air to those tubes?

I guess I don't understand the question. The air comes into the ammo box through the 12v fan and out the orange tubes attached to the bore guides which blows down the barrel. I tried reversing the flow to vacuum but for some reason it didn't cool as well, plus putting it in an ice chest really helps.

 

[Jeff A]

Well, after re-reading my question I can only hope that you took my question as an April Fools question, it is that stupid! I get it now, the box is sort of pressurized! In that vein, I guess two hoses are one for the chamber and one for the muzzle in order to double the cooling effect!

Nothing like making an ass of yourself in front of this crowd! Sorry. Great idea. Time for me to shut up!

 

[Wazizit]

Well, after re-reading my question I can only hope that you took my question as an April Fools question, it is that stupid! I get it now, the box is sort of pressurized! In that vein, I guess two hoses are one for the chamber and one for the muzzle in order to double the cooling effect!

Nothing like making an ass of yourself in front of this crowd! Sorry. Great idea. Time for me to shut up!

Actually it is made for 2 rifles. We put 2 rifles on the cooling station while we fire the others.

 

[Bart B.]

How much does your zero shift across 20 to 30 shots starting with the barrel at ambient temperature fired every 20 to 40 seconds?

What direction does it go?

Or do your groups just get bigger in all directions?