The writer had hulks healing factor to justify or explain how hulk will survive getting his skin pierced by ad bullets, this being the case Thor does not have the same luxury, so I think it will stop at the adamantium barrage.
Unless the writer decides to have thor fighting the sentry with his body all blodied and looking like swiss cheese.
I just can't picture it.
This is talking in the sense that the story goes the exact same way for both characters.
This kind of makes me wonder who has better piercing durability, the hulk or thor?