while CCI is definitely not garbage, I've not found it to shoot well in most "match" grade guns and often splits groups in the rifles I have. Eley, Lapua, SK are the kool-aid all the cool kids are drinking, but can be 2x the cost of CCI green-tag. Even within those it's a matter of finding which one and which lot your rifle likes. Tenex has won a ton of olympics, but it shoots like trash in action/chamber that's optimized for Center-X.it didn't feed reliably with the CCI sub sonics which are what I wanted to shoot