M-M,
I hesitated to mention this earlier for the very comment regarding "amateur gunsmith" in the above post, BUT:
Your CAN try to do your own re-crown job!
By chucking a BRASS ROUND head screw into a drill. And going low speed using 1st a lapping compound followed by a polishing compound . This will just clean-up a bad crown w/o removing any barrel length. Caution to other readers -This only works on a std round type, DON'T use this on a recessed target type crown.
PS I, too, Really wish you would post a pics of the problems.