system
Given the following post, respond as if you're commenting on Reddit:
human
[Logan] Spoilers - Question regarding a weapon in the film.

How would an adamantium bullet be able to kill Logan/X-24, when stabbing with adamantium claws in the brain can be recovered from?
gpt
Assuming his claws were even able to pierce the adamantium skull (with his claws having much lower energy than the bullet), the damage they would do to his brain would be far more localised. The instant the claws start to retract, the brain tissue would begin regenerating behind it. In a fully developed mind this would still cause problems but for a mainly feral newborn mind, those issues wouldn't be very apparent, especially during a life or death fight.

That bullet, on the other hand, did a lot of trauma to a large amount of the brain. Half of it was pretty much blown away at once and what was left was probably not in good shape. X-24 would have died instantly, without having the chance to even start regenerating the damage.