I can't comment on primer pocket swaging on the S&B 9mm, but I do know that I cleaned the pocket, reamed it just a bit and even chamfered the pocket to try and ease seating and it just didnt work. I suspect you could swage them to size, but I dont really want to put that much effort into making 9mm brass shootable when there are tons of it out there that is far less labor intensive to mess with.
US Army 3rd ID 1999-2003 (OIF I)
"Guns aren't toys. They're for family protection, hunting dangerous or delicious animals, and keeping the King of England out of your face." -- Krusty the Clown