Did you realize that Beretta is the only gun manufacturer that supports loading a round directly into the chamber? They include this loading method in the owner's manual, well at least for the 92 series.
I think that is advantageous in a couple of ways. One can load a round into the chamber, close the slide, decock, and insert a full mag and the gun is fully topped off. Otherwise we have to insert a mag, rack the slide, decock, remove the mag, add a round to the mag and reinsert the mag.
Another advantage would be in the rare event that we had bullets and no mag or a damaged mag, we could load the bullets one at a time. This may be faster and easier than you would think because of the Beretta's open slide. I've tried it; it's easy!