I have found the Privi brass to be good. Use it in 7.62 x 54R, mostly neck sized, 5 & 6 loadings so far, no issues. I have used the Winchester in the same cartridge, and found it to be good too. Strangely enough the Winchester brass was primed when I bought it and required the primer crimp removed on reloading. I have purchased some 6.5x55 Privi cases but have yet to try them.