Looks like the timing is all F***** up.
that case in last picture is not seated properly.
Get a bushing wrench , handy to have and not that much money.
BTW, your picture taking is great, But don't shoot that thing till you figure out what is going on.
If you do try one round at a time , no mag, though I don't think that will help, don't look like a mag problem
I don't like the looks of that link, but that could be just from beating it a part.
When the gun is together, empty, is there any movement in the barrel up-down at the hood, take the bushing out and wiggle the front of the barrel , up and down movement?, slide closed of course.
I am grasping at straws now.
You have checked the chamber with your ammo?