Supressor cooling

[Spindrift]

Barrel/ suppressor cooler 2.0
Small, cheap pump that runs on a rechargable battery, and a suitable piece of garden hose. I’ll try it out next time on the range. The air stream through the muzzle is very good, should work fine.

 

[Missionary]

Was the water jacket by Browning or Maxim?

 

[Missionary]

Hiram Maxin 1884 as he was working on his recoil actuated auto loader.

 

[Ian]

Did you ever try a damp denim wrap? It totally solved my suppressor mirage issues. I need to make a permanent one with hemmed edges and maybe some lace hole grommets.

 

[Spindrift]

Actually, I haven’t!
I have sometimes used a wet rag to cool the suppressor. I should try that wet denim trick.

 

[Missionary]

Actually there is no reason not to wrap any barrel. I would hesitate with carbon steel but Stainless would be tolerable.

 

[Jeff H]

Reading through this thread, I didn't see it specifically mentioned, so I have to ask: is this cooling necessary for sub-sonic loads or is it more for full-speed ammo?

I'm waiting on a can for a 357 carbine (single-shot) and am curious. Obviously, I won't be doing any 30-round "mag-dumps," but wonder what I should expect or watch for when I start using it.

 

[fiver]

the key is powder volume.
3grs of 700-X isn't gonna heat up a can unless your hanging it out in 100-F heat, even then the powder ain't to blame.
a tube full of H-110 etc. still has enough unburnt junk to light off in the can when it hits the air in there.

 

[Jeff H]

the key is powder volume.
3grs of 700-X isn't gonna heat up a can unless your hanging it out in 100-F heat, even then the powder ain't to blame.
a tube full of H-110 etc. still has enough unburnt junk to light off in the can when it hits the air in there.

Got it.

Thanks!

I'll be using small charges of "faster" powders to just get 180 and 190 grain lead going sub-sonic.

 

[Ian]

Suppressor mirage can happen even with popcorn loads if the can is in direct sunlight. The mirage becomes intolerable after just a few supersonic shots when using a scope and trying to shoot tight groups. The aim point can "wander" several inches if it is bad enough. When the barrel gets hot enough that touching it for one full count makes you draw back, even powder coated cast bullets are starting to fail and it's time for a break and barrel cool down.

 

[RicinYakima]

Shooting with heat mirage is separate skill set by itself! Shooting at Camp Perry at 100* and 90% humidity is a real experience.

 

[fiver]

try 300yds. over snow when it's like 10-F with no wind.

 

[Ian]

Having a several hundred degree air temperature differential 1/2" below and two feet in front of the line of sight is a huge problem too.

 

[Spindrift]

One of the ideas of this pump is, it actually cools the barrel, as well as the suppressor. I find mirage to be most problematic in cold, clear weather. On a crisp winter morning, two full-power 30-06 loads is enough to make the sight picture slightly vague.
Hopefully, I’ll get a chance to test it in a few days.