Just picked up 700 pieces of Makarov range brass at a gun show for $22. It was in a sealed bag, so my first thought when I got home was "Oh heck, I bet I just bought a big bag of berdan primed stuff". Not the case, it is all boxer primed and made of actual brass. This particular dealer is not known for offering deep discounts. Is there some safety issue that I should be wary of? Or is demand for this brass so low that the dealer simply wanted to get rid of it?