Corrected entry: It is stated that the only thing which will penetrate Logan's adamantium skeleton is an adamantium bullet. Following this logic, Logan's adamantium claws should cut through Deadpool's arm blades, or vice versa.
lionhead
9th May 2009
X-Men Origins: Wolverine (2009)
Correction: We can assume that as Weapon X has the same healing abilities as Logan, his blades are adamantium too.
Correction: A bullet traveling at high speeds would behave very differently than a blade, even of the same material.
Knever
Quite correct. A lead (soft) bullet will penetrate a steel (hard) plate due to its velocity. The same applies here.
Actually it's not about something softer vs something hard. Adamantium is quite indestructible even when matched against each other. But an adamantium bullet can dent an adamantium plate at least. Of course the true nature of the adamantium in the movies is not as elaborate as the comics (certainly not the origins), but I think the basic features still apply, that it is steel with an extremely high density and thus indestructible even when it's adamantium versus adamantium. This can even include Silver Samurai's adamantium in the later movie which is obviously of higher quality.
lionhead
I was trying to make the point that a bullet can penetrate something as hard or harder than itself due to its velocity.