9 mm split brass stuck in my barrel

[Brianma65]

What make 9 is it?

 

[FLHTCUI]

Thank everyone.

The winner is buy a good tap and die set and carefully using the 3/8 tap, six turns and tap from the muzzle and out it came.

Now to figure out which brass needs to go.

Gee, who woulda thunk that would work?
Glad it payed off.
Rob

 

[quinnbrian]

Compressed air. ....take your air gun (sorry...blow gun ) and stick it down the end of the barrel , from muzzle end sometime moving it back and forth works best. Sometime some lube will help. Just realized... this posting is sounding wierd!!!....lol
Usually the brass will fall out....brass gets colder then the steel barrel. . Brass shrinks more and falls out

 

[AikiNut]

Compressed air. ....take your air gun (sorry...blow gun ) and stick it down the end of the barrel , from muzzle end sometime moving it back and forth works best. Sometime some lube will help. Just realized... this posting is sounding wierd!!!....lol
Usually the brass will fall out....brass gets colder then the steel barrel. . Brass shrinks more and falls out

I like the 3/8tap idea but if the different thermal expansion coefficient trick works, would a blast of spray brake cleaner do the same? I’d personally try the tap because I have one. As a test of the concept a tin of brake cleaner is cheaper than a compressor and accessories... unless you already have one.

However.. just looked up the coefficients for “cartridge brass” and steel. The brass has a lower number than most steels so would shrink less than the steel if chilled. Suggests to me that the barrel would squeeze the brass on cooling and expand away from the brass on rewarming.

Would an hour in the freezer followed by a soak in boiling water do the trick?

 

[silverfoxdj]

Thank everyone.

The winner is buy a good tap and die set and carefully using the 3/8 tap, six turns and tap from the muzzle and out it came.

Now to figure out which brass needs to go.

Excellent...

 

[tbrwlf]

It was my Norc NP29

 

[quinnbrian]

I like the 3/8tap idea but if the different thermal expansion coefficient trick works, would a blast of spray brake cleaner do the same? I’d personally try the tap because I have one. As a test of the concept a tin of brake cleaner is cheaper than a compressor and accessories... unless you already have one.

However.. just looked up the coefficients for “cartridge brass” and steel. The brass has a lower number than most steels so would shrink less than the steel if chilled. Suggests to me that the barrel would squeeze the brass on cooling and expand away from the brass on rewarming.

Would an hour in the freezer followed by a soak in boiling water do the trick?

Ya I don’t really know why it works ,lol be I do know it works well. If the wooden dowel trick doesn’t work on my JR 9mm , the compressors air will... every time . I’ve loaded some pretty hot loads in the JR and taken the heads right off the brass and one of the above ways work every time. My air compressor is old and big .... like 50 cfm’s at 145 psi
Also barrel to brass wall thickness might play a roll in ... thin brass shrinks faster, then a thick barrel...just asking , might be it?
Cheers
Brian

 

[mbogo3]

An easier variation of the tap is a long lag screw that will fit in the brass.No danger of scoring the chamber unless you are ham handed.With a socket tighten just until you feel the threads bite . now you have a handle attached to the brass.Bolt head in a vice and hardwood block to drive off the barrel.You may have rough spots in your chamber being a Norinco that could benefit from some polishing.