I had shot a good bit of the Aguila standard velocity without problem, but experienced a number of misfires in the last batch I bought about 8-10 years ago. Only time I can recall that happening, but haven't tried it since.

I normally shoot only CCI standard velocity. I've found the the accuracy of the Aguila standard velocity is a bit below that of the CCI, but the Aguila is cheaper. Overall, it's pretty good ammo and reasonably accurate in most rifles and handguns.