WHAT DOES H335 VS CFE223 MEAN?

I commenced taking pictures Pdogs with tac. Shot excellent and everything things. The next calendar year, I could not obtain any so I checked the burn up charts and Here's H335. Tried out it and acquired the very same speed with the EXACT same powder charge of tac.also midwest powders WC844 which I've a huge amount of. It pops up on American Reload