Hi Iggy,

I think I've heard of this happening before and the solution was to
support the rear of the gun and, using softeners, tap downward on the
front of the slide.
The theory was this was less stress on the slide and related parts than
is caused by firing a round. I seem to remember it worked just fine.

Now it's been a while since I heard about this so take it with MANY
grains of salt, especially in the details. Good luck.

dennis
in nca