What would be the point? So you can’t chamber a round without first:
1) Disengaging the safety
2) Dry firing
3) Re-Charging & Chambering the round
This ROE makes even less sense when you consider all that!
You don’t need to do all that. You just have to charge your weapon. It only takes a couple of extra seconds, but that’s a hell of a lot longer than it takes to just flip the selector lever and fire at a target.