Whistlepig. here is what I was trying to say about slide racking.. But this article says it better than I did and with some pictures
RACKING THE SLIDE TECHNIQUE
The most important thing to remember is this.. PUSH not PULL.
The proper technique is to PUSH your dominant hand firmly, the hand gripping
the gun forward while holding the rear of the slide NOT pulling the rear of
the slide backwards. Here are the steps:
1. Grasp your gun with a dominant hand, with your trigger finger outside the
trigger guard and with your non-dominant hand grasp the upper and rear end of
the slide. Position your hand so the heel of your hand is nearest you with
your other four fingers over the slide and grasping on the outer side.
Not pinching it from the rear between your thumb and index finger.
CAUTION: do not let your hand cover the ejection port as your hand can get
severely pinched in it during the sliding action and blocking the ejection
port can cause a jam.
Safety Note: As you grasp the slide, your trigger finger will naturally clasp
as well, you must consciously prevent your finger from moving onto the trigger
while you work the slide.
2. Bring the gun toward your middle belly (midline) pointing in a safe
direction with your dominant elbow braced in your side. Simply drive your
gun hand, or punch firmly (very firmly) forward while holding the slide firmly
in place toward your midline, so that it does not move with the gun. Think of
this motion as punching the gun forward, not pulling the slide backwards.
CAUTION: No matter how much you struggle with this movement, do not let your
trigger finger slip into the trigger guard.
3. Once the slide is pulled back to its rearmost position, release the slide
completely. Do not "follow" or"ride" the slide with your hand, let it go. The
slide must slide unrestricted to properly chamber the round.


