I use both, but if I had to pick only one, it would be Remington. I find them more reliable (read NEVER fails to fire), and in some of my pistols they are the only kind that will go off reliabily. Having said that, my rifles will shoot CCI's, but some of the rifles with a patent breech sometimes needs magniums in order for the gun to fire reliably. I do win CCI's in matches locally, so gotta use them somewhere. :thumbsup:
Hope this helps, see ya, JIM/OH :hatsoff: