Factory loaded ammo can have problems just like reloaded rounds, although its not common. I reload everything I shoot, except rimfire of course. I've never had a problem - I've had some loads that I didn't like, which I changed to my liking. One of my favorite guns is a Desert Eagle in 50 AE. I've run 3600 rounds through this gun without so much as a hiccup. Considering the cost of new ammo, I couldn't afford to shoot this gun without reloading it myself. Question: If you load ammo with new brass, does that mean it isn't a "reload"?