Originally Posted by simonrichter
Eventually, one issue where a FMJ would make sense occured to me, namely lead free ammo which might be important in the light of environmental awareness... Just a thought, though...
Typical centerfire FMJ ammunition is not lead free. It is a lead bullet with a thin copper jacket on it. For most FMJ the jacket doesn't even enclose the base of the bullet, so in a high-pressure round there is still some lead that gets vaporized with every shot.
Lead-free ammo is made of ... "other stuff," such as some recent offerings that use solid copper bullets.