I own and load for 3 .204 Rugers. None have been difficult to load for and these days I have narrowed down my powder choices to keep things much simpler. I like RL-10X and WW 748. Both of them meter well thru a powder measure which is important if you are loading several hundred at a time. Both give excellent accuracy and fast bullet speeds. Plenty of free load data available at the 204ruger.com website. Never take loading data solicited from a forum without verfiying its accuracy.... a typo or bad info could kill you.