I recently got my first gun, a Glock 27 Gen 4. I was looking at self defense rounds and the sales guy at the gun store sold me a box to Zombie Max rounds, the name aside he said they have more rapid expansion so they won't go though a person or even walls. Though I live in a cheap apartment, I think anything would go though the walls easily. So my first concern is making sure the round does not go though the walls, while I don't expect the wall to stop any round, with the laser sight I am getting I shouldn't miss so as long as I can be certain the round won't go though the intruder that should work. The problem is the Zombie max rounds run about $1.50 a round with sales tax. Is the gun store guy right or just trying to sell me the most expensive stuff? Are traditional hollow points good enough? I would like a good affordable round so I can practice with the same rounds at the range. I would really like to shoot as much of my self defense ammo as I can at the range to get used to it and stay up on my accuracy with it but at the price I'd find it hard to.