Salem, if you are really worried about it, and I'm not saying one way or another on the accuracy part, I would just try switching out rounds when you load/unload. You know, take the one you just ejected and stick it in your pocket, replace it with a fresh one.
Or cycle the next round in on the next stand, pull the mag back out and stick the shell from the last stand back in the mag.
Might wind up with 3 or 4 one time chambered rounds at the end of the day, but one good stand, or being a lousy shot like I am, and you can get rid of those in a hurry /ubbthreads/images/graemlins/grinning-smiley-003.gif