Another plus regarding these bullets is that they are much less messy to work with. The coating they have is totally dry and so you have zero fouling of your reloading dies. One thing you need to be careful about is that you are bell your brass well. The coating is very thin and can be scrapped off if the brass is not properly belled.
Basicly, I veiw these bullets as a poor man's jacketed. You shouldn't load them like jacketed, but as far as barrel leading that are almost as good as jacketed.