I am using Tula SR primers for .223. I'm not a fan and next time around I will be buying CCI. I just don't care that much about the $13 difference in cost.
I assume you are checking the prices at Powder Valley. To save any money, you need to absorb that HazMat fee over a lot of primers or a mix of primers and powder.
"No matter how cynical you become, it's never enough to keep up." - Lily Tomlin