Shooting Underwood 10mm AUTO 200 XTP J.H.P. in my STI PERFECT 10 and had a case seperate on me. How do I get the front 1/3 of the case out of the chamber? Don't have a broken case extractor and can't find one for 10mm/.40 S&W.

Put some Kroil spray in the chamber, let soak.  Use an oversized chamber/bore brush (.45cal) wrap a patch around it and see if it will snag as you turn the brush/patch into the chamber and pull straight out!

If this doesn't work, you may need to try and shape an ice pick and use the rounded side against the chamber, to raise the brass away from the chamber wall, using care as not to scratch the chamber.

Did you have damage to the gun or grip panels?  Please contact Kevin Underwood and advise him of the issue.
Please post a picture of a casing or round in the chamber after it is cleared. to show the chamber support!
Good luck!

Can you do like I did by putting a 9mm piece of brass in from the other end and tap it out?

Will pick up some Kroil spray tomorrow and try the over sized brush after soaking for an hour or 2.  Not good at posting pictures but will try.  I don't have the primer/head section, it was left at the in-laws where I was shooting and sister-in-law pitched it.

Get a set of gunsmith brass punches & hammer & tap it out.  The brass will not harm your barrel

Quote from: rainsdrops on July 03 2014 02:33:21 AM MDT
Get a set of gunsmith brass punches & hammer & tap it out.  The brass will not harm your barrel

This is what I did with a .40 case head separation in an M&P once.