There are a lot of cartridges out there... when they intorduced the .204, I was busy playing with Hornets and PPC's, and when I tired of that, I reached into the back of the cabinet and pulled out the .223's and .22-250's again... somehow the .204 got lost in the shuffle.
Around here, many guys that have tried the 204s ended up going back to 22-250s and 223s again. For one reason or another they just didn't care for the 204s.