WHAT DOES CCI NUMBER 10 PERCUSSION CAPS MEAN?

Several many years ago when the world was less cautious, I went towards the CMP Armor's Corner and acquired acquired a recipe for 30 carbine loads. The creator gave a load for one hundred ten grain bullets of fifteen.0 gr of W296 with either small rifle or small rifle magnum primers. I loaded up some making use of military brass (I forget about whi