The die numbers you are referring to use to mean something, but they have little meaning since Bob Holtz retired from Crosman, and that was quite a while back. It was Bob and his team who designed the Premier. While they are still fine pellets they don’t clean them they way they once did, because of the pollution problems caused by same. If you use them you should clean them first, I use an ultra sonic cleaner filled with paint thinner to clean mine. The Premiers come with a lot of lead dust, and if you don’t your barrel can lead up quickly.
I know of several shooters who got Die # such, and the box have both round nosed pellets and flat nosed pellets in the box. The count was about 60/40, so these die numbers mean nothing, except that is how many that they have worn out……
The old die #2 was a good run, and a lot of field target shooters swear by them. Rightly so, as one does not have to sort those like they do the newer die numbers.
Jim