The "scientific" tests mean very little to me. What I do believe is what I see with my own two eyes. I can care less how the ammo performed in a lab. What I do care about is the practical application. If my rounds can cause that kind of damage to a phone book, water jug, orange, apple, etc., then I'm sure they'll do the same when hitting a BG. I strongly recommend that you get some "hands on" experience with your Glaser ammunition. Shoot at a bunch of different stuff to see how it performs. We've gone so far as to shoot at drywall (stuff that makes up the walls and celing of some of our houses), T&G lumber (stuff that makes up the walls of other folks houses), CMU blocks and even tried shooting at ceramic tile flooring. The experience was very educational.
As for buying personal protection ammo at a gun show, let the buyer beware. I've seen cases where folks have sold "factory seconds" at gun shows. These "seconds" might look and feel like the premium stuff, but have some type of internal flaw that makes them safe for practice, but not for "duty" or "personal protection". Be very careful where you purchase your defensive ammo. If the dealer selling you the stuff is shady, they may sell you something that is less than desireable for defensive purposes. Most reputable dealers will CLEARLY mark the ammo as being "for practice only" or "factory seconds", etc. The Glaser ammo we shot was special ordered through our local gun shop.
gf