[Larry the Gun Guy]

I have a DH Titanic steel barreled 10 ga and the chambers are, for whatever reason, over sized and somewhat sloppy. I have owned it for about 3 years and the other day I shot it for the first time. On opening the gun the empty in the right barrel somehow jumped behind the extractor, I think primarily because of the over sized chamber. Both shells fire formed to the chamber and I had a heck of a time getting them out.
What is the thinking on having Briley or someone installing inserts in the chambers to shim them to the correct diameter?
I know Parker made only 205 steel barreled 10 gauges of any grade, but I really can't shoot it the way it is.

Thanks in advance for your opinions.