Originally posted by cw2go
I just tried moving the slide slightly to the rear (simulating a case which was not fully seated)
The tests I did - (with a case (10 mm) that could not fully seat in my .40 cal)
indicated that if the case is not fully seated, then the breech cannot close against the barrel.
And the slide cannot go up the incline.
Try it and let me know what you learn...