Well I read a couple boxes of ammo I have laying around and have to say they don't explicitly say not to smack them with a hammer. Guess that should be added to the list so the folks with single digit IQ's don't hurt themselves. The silver box is Winchester, green box is Sellier&Bellot (heck the S&B ammo's warnings are in 4 languages no less). You would think that would be enough of a warning to not do something stupid.