If the bolt was simply jammed, why take it to a gunsmith? I would take the smith's word on it, he (or she) is the expert, not you.
Like the time my dad was fishing with a guy who was assembling some salmon trolling gear. The guy tied a new hootchie and hook, to a new flasher. He tied the new flasher to a new deep six diver. He gently carried and lowered the whole string of new gear over the side of the boat and lowered it into the water. The gear began to sink, and then kept slowly sinking into the depths, unattached to the fishing line and rod.... Dad's friend exclaimed "I tied it to my fishing pole!!!"
My dad slyly replied "then reel it up..."

The point is, oh, hell actually there is no point, I just wanted to share that story...
Trust the gunsmith, quit whining.