Ok so I purchased 6 targets from this place http://shootingtargets7.com/
The owner said that the 3/16ths would be just fine for 9mm and if I didn't like them, to send him back and he'd give a full refund.
I added it all up plus shipping and it was 96.00 buckaroos.
1 of these
1 of these
2 of these
1 of these