[HairOfTheDog]

I always assumed the Uruks dug under the wall at Hornburg and placed a bomb manufactured under Saruman's supervision...

Yes, I would buy that.... I don't know if the folks at TORN know what they are doing when they use the word mortar... I don't know if they know if it is a projectile or not.

[g'nad]

I don't know if they know if it is a projectile or not.

Well if they had hired me as a technical consultant... wouldn't you love that job?...