Your post is damn hard to understand. Let me see if I understand you correctly.
Sounds like your trying to load one in the pipe. Your trying to do this by hand feeding into the chamber and then dropping the slide. If this is the case, stop doing this. It is real hard on your extractor. If fact examine your extractor, you might of beat it up pretty good.
The best way to do this is to chamber a round from a magazine, remove the mag, and reload it with another round (aka barney round).