Howdy Ammohog, mechanics use tapered rubber plugs to seal off fuel/brake/vacuum lines when doing service work. I still have a tapered multistep plug in my toolbox that goes from 1/8" to 3/4" but in a quick search I don't see them being available now.

I do see this Thexton set that Advance Auto carries. https://www.thexton.com/plug-stoppers-p-23.html It works on gasoline so should be fine for solvents.

Just a thought.

Frank

 

Just might have to try this. I hope the ".22 Benchrest" with the O ring plug works, but after talking to fellow shooters, I don't have my hopes up.

 

I just plug the muzzle, and fill the chamber. Then the leak fills the Tupperware bowl.:

Or you could stuff a patch in the chamber , put in a shell casing and close the bolt?

 

Try a foam ear plug.

 

Tried a foam ear plug in the chamber. Still leaks.

I just plug the muzzle, and fill the chamber. Then the leak fills the Tupperware bowl.:

Or you could stuff a patch in the chamber , put in a shell casing and close the bolt?

Just before the crown is where some of the fouling is. Tried an ear plug and a shell casing wrapped with teflon tape with closed bolt, still leaks. Keep the suggestions coming.

 

Ok. Is your barrel threaded, if so find a cap with out a hole. Or if not put a balloon over the muzzle, or something similar.

 

wood golf tee works for me -

 

Genius :bthumb:

 

Will a #0000 rubber plug work in a .22LR chamber? Anyone here actually tried this size?

 

The standard on those stoppers is .250 on the narrow end Ammohog. Trying to stuff that into a .226 hole would be a trick unless you skinned the end down a bit. I have not tried it though.

The other question is solvent resistance. There are lots of forms of rubber and many aren't petroleum product resistant. Nitrile is a good choice. Silicone or Buna not so much although for short exposure it may not be a problem.

Frank

 

A few minutes with a Dremel tool and a sanding wheel and you ought to be able to reduce the size of a rubber washer easy enough. I do it often.

VH man:

 

How about a shell casing with a small o ring? Just a thought, as I don't see any reason to fill my barrels with anything. Modern solvents seem to work just fine.

 

How about a shell casing with a small o ring? Just a thought, as I don't see any reason to fill my barrels with anything. Modern solvents seem to work just fine.[/QUOTE

Just tried the "O-ring around a shell casing" idea. IT WORKED! Had a carbon ring about 1/2" into the chamber. Found a small O-ring at ACE hardware that would fit snugly around the casing, slid it into the chamber of my Savage, closed the bolt, filled the barrel with BORETECH C4 Carbon cleaner and let it sit overnight. CARBON RING GONE and NO LEAKS! Haven't tried it on my VUDOO yet but I'm sure it will work...

 

I found this suggestion in another thread, can't remember who suggested it. May have been smooth? I am going to order a few to see if they work:

https://www.widgetco.com/000000-rubber-stoppers-plugs

 

Yes- I simply place a small O-ring over a fired casing and close the bolt on it.
Simple, effective and airtight in almost all my guns. Sometimes I have to stack 2 O-rings, but not often. PM me your mailing addy and I'll send you an assortment of the sizes that work for me.

Regards

DrG

 

The size of the O-ring that worked for me is #007 if that helps. I just ordered 10 or 'em off of EBAY

 

DrGunner - PM sent.

 

I can't remember who I bought my set from, but I've been using the same 80 piece set of tapered high temp silcone plugs on multiple calibers of guns for years now. Here is a link to a set on Amazon:

80 Piece 1/16inch to 5/16inch High Temp Silicone Rubber Tapered Plug Kit Powder Coating Custom Painting Supplies

 

Second thee golf tee