RE: Oh boy, this could be bad...
I understand the problem.
If you use oil to try and loosen this spent case enough to drive it out somehow......REMEMBER!!!
Don't be over anxious to try another round OF ANY MANUFACTURE before thoroughly cleaning the barrel to remove any residual oil!!! Excess (residual) oil can cause a barrel to explode when fired!
Just a reminder to play it safe!
By the way, the 742 is a fine rifle in my book!
Uncle Matt (in IL)