Wouldn't trying to deadlift more than 400 pounds be the same amount of effort on the moon? Granted, it would have to be that much more massive, so it would certainly LOOK more impressive.
That's what I was commenting on though; I very well may be wrong, but my understanding was that the weight of things like barbells is measured in pounds-force, not pounds-mass, so if you were going to follow that on the moon you'd need a much more massive set of weights.
Though, I suppose if you're saying "I'm taking these exact same weights to the moon to lift" then you're right. I was being unnecessarily pedantic.