ChipChip I have a 204 and use CFE 223 in it exclusively now it works really well. I use 32 gr bullets with Remington 7 1/2 primers. What I've found was with Benchmark the other powder I used in it, I had to clean the barrel about every 30 rounds as accuracy would fall off. With CFE I can go 10 to 15 rounds more, I have checked this over the last couple years.