That doesn't change that the basic design of the bullet, the entire point of that bullet is to penetrate game. That's why and what it was designed to do.
It didn't, that's a failure.
If the company is building partitions at a size that will not do what partitions are designed to do, that is still failure. If the basic premise of a design is too much to ask for they should not exist. I can't agree with the idea of "you were asking a partition to do what it was designed to do, and you cant expect that"