Having always owned revolvers, I JUST now bought my first semi-automatic - a 9mm Taurus PT-111. I have not made it to the firing range yet. However, I noticed that when I pull the slide back manually to load a cartridge, the bullet (Winchester WinClean) hits low on the barrel and jams. BUT, when I have the slide back and locked, and THEN release it (the slide moves forward quite a bit faster than when I pull the slide back and let it go forward with my hand) it seems to load OK. Is this normal?