Re: Break in Bullets?
The above is generally true; especially the part about speeding up what is normally a natural process.
If you are thinking about using them on a premium aftermarket/custom barrel, be aware that some barrelmakers don't like this and may void your warrantee of you do it. They can tell when they get their handa (and borescopes) on it.
The point, however, is that they nearly all already perform internal honing operations on their barrels, and the use of such bullets is not applicable to such barrels. Might even be counterproductive, if not in practice, then maybe at least contractually.
Greg