Which is the best way to load a Beretta A390? I bought mine used, so I don't have a manual. Loading it with 3 shells I first put 2 shells into the magazine, then I push that little piece of metal directly under the feeder backwards so that it allows one round to leave the magazine. Then I pull the bolt back and forth so that the shell goes into the barrel. Finally I load the third shell into the magazine. I suppose one could also begin with setting the magazine cut-off and pull back the bolt which then stays open, and load the first shell into the barrel. How do you all do it?