Not a Ruger 204 but I have a CZ Varmint w/kevlar stock in 223, the stock is set up for varminting so it is different from the American, very accurate rifle. I have set the single set trigger to about 2.5 pounds and have no take up, it breaks clean and no overtravel.
Also have a CZ 527 Carbine in 7.62X39 and Lux in 223, all fine rifles.