I'm not sure what you're talking about. It looks like all except 4320 remain in production.
N-202? Um nope. Never heard of it nor do I recall seeing it for sale. And the point is that this data set can be used to derive a new data set with the newer powders. Provided newer data sets still have the old favorites like Win 748 and H335 in the same sections. This would be a project for a true reloading loony while being loosely supervised by a rifle loony
