Help on straight wall case extraction

[CowboyIrons]

Howdy all:
Have a '73 cowboy rifle in .38/.357 that had one to many reloads on a case... case severed after firing just 1/4" above rim. Bulk of case remains in the chamber.

Anyone have suggestions on removal techniques or tools?

*have already used numerous penetrating solvents and patches
*have run new slugs down muzzle to try to catch case on the way out
*have tried the u-tube idea from Midway on plugging bore with patch and pouring molten lead in chamber... (thought that one would work!)

but no luck at all - that brass is in there good... next step?

 

[49willys]

Bore brush always works for me when I have a case head seperation.

 

[CowboyIrons]

Thanks - but even new brushes won't grab enough to budge it at all...

Have been searching for some sort of straight wall extractor or easy-out tool - no luck...

 

[49willys]

Try a 40 cal brush.run the cleaning rod down the bore and screw on the brush in the action,pull the brush into the chamber a little.then try hitting the rod with a rubber hammer or piece of wood.use an old cleaning rod for this.
Another thought I had was to make a tool that would squeeze a rubber stopper between two washers to make a sort of expanding type stuck case remover.Ive seen deisel mechanics use a sort of device to pull piston sleaves out of an engine block.
Hard for me to explain what it looks like in writing.

 

[CowboyIrons]

Excellent suggestion - know exactly what you mean. Now to Macgyver a screw with rubber bushings/washers on the end of a cleaning rod - off to the hardware store tomorrow

 

[49willys]

Awesome,post a pic of your invention if it works.guy might patent it if it works good.

 

[kyhunter]

works in the same idea basically as a rubber expanding freeze plug. itll work just fine if you can find proper size rubber bushings.

 

[CowboyIrons]

Will do - if it works, I can see a few different size cals 'on sale' at all our matches from now on... We all tend to reload brass until they fail... low pressure loads and lots of rounds - you start to think they will last forever... Until they don't.

btw - here's the pic of the problem...
https://picasaweb.google.com/115438104778780166580/May282013?authuser=0&feat=directlink

 

[BCRider]

If you can try to make sure it expands up at the mouth of the case and into the throat area. That way the expanded rubber will catch on the mouth of the casing. Otherwise you may just expand it out and grip harder onto the wall of the chamber.

Leaving the threaded rod long so it comes out the back of the receiver past the hammer would also allow you to slip on a length of pipe or steel rod drilled long ways to act as a slide hammer to shock the casing into coming unstuck. Sometimes a shock like that works better than a steady pull. A length of thin plastic tubing over the rod will avoid any risk of the threaded rod marking the action.

 

[CowboyIrons]

OK people, here is what I built and tried... still no dice -.-

Plan - A
This is a brass screw with brass washers and several rubber bushings. The brass all fits inside a case wall, but not in the bore. THe rubber is already larger than the case wall and had to work in down into the stuck case neck inside the chamber.

https://picasaweb.google.com/115438104778780166580/May28201302#5883223422703348466

This is the contraption on the cleaning rod end...
https://picasaweb.google.com/115438104778780166580/May28201302#5883223424988381010

after working the assembly into the case, tightened the screw down until no expansion remained possible. The brass starting giving way on the screw head. It took a fair amount of force on the rod to pop the expanded plunger out. Didn't budge the case.

Plan - B
Found this item which amazingly fit just inside the .38 case neck with minor nudging. The ridges had a nice crisp sharp edge.

https://picasaweb.google.com/115438104778780166580/May28201302#5883223421599266130

The plunger nail when tapped down, expands the split end into the case neck. I could tell it was grabbing on pretty well. But, when I gave it a sharp rap with a bore rod, it slid free of the case... It left ridges in the case neck that I can still see - it just didn't have enough to budge it.

Plan - C ? ? ?

 

[rcmodel]

Buy a small chunk of dry ice and pound some in the case with a wooden dowel rod.

In about 5 seconds the brass will shrink up faster then the chamber gets cold and it should come out.

No dry ice available?

Very carefully.
Grind a 3/8"xWhatever TPI thread tape to miss the chamber, but dig into the brass case enough to knock it out with a rod from the muzzle.

Again, very carefully!

No thread tap available?
Take it to a gunsmith so he can get it out without harming the rifle.

rc

 

[49willys]

Like above or try to slowly and carefully cut most of the way through the case with a micro file or hacksaw blade,if it will fit.might then be able to pry a corner up enough to grab with a needlenose pliers.

 

[Longhorn 76]

The best way is to fill the chamber with Cerrosafe, just like you are doing a chamber casting. When you remove the Cerrosafe, the case will come with it.

 

[LNK]

To give you a little extra help, use a can of air upside down to freeze the case before using any of the brush methods. Case shrinkage might help...

LNK