How carefully do you inspect commercial ammo

[Snyper]

That load on the left of the image is not from any standard box of ammo. It is a clear screw up. If you saw that in your handloads, you'd never give it a pass.

Something went wrong with the seating tooling and nobody noticed in time to prevent it finding its way into a box.

It could also have been caused by something being dropped on it after it left the factory

 

[Frankly]

When these two "bullets" (above pic) from this box of factory cartridges (below pic) somehow didn't look quite the same, I finally made the decision to start loading my own.