I tested 3 different 9mm pd bullets on a 1187 page book with a ruger lc9. Hornady cd 115 ftx, federal 115 jhp pd, and speer 124 +p gold dot. Both the Hornady and Speer went almost thru the book, making dents in a second book backing it up. Feds went to page 940. Hornady expanded well and did the most damage at 115gr. The speer at 124gr held its shape and weight, but this was a +p bullet. Federal was in pieces shredded with the less weight. Hornady looks like it won this round. Major difference from the 380 bullets I tested in a earlier thread. The Hornady was a bust with Speer being the winner. I have my lc9 loaded with Speers with a mag of Hornady for back up.