The best source for 204 loads etc is here:

http://www.rugerhunting.com/forum/

It seems that some guns like Sierras and some like Hornady etc. My Sako likes the Sierras with RL 10x and this is a VERY popular combo. It seems maybe it's the Savages that will launch the 40 gr Hornady and Nosler, but tjhis is just a casual observation.

There is an active shooter "Rick in Oregon" who frequents the Ruger board who has been a very outgoing and helpful shooter.