I've been on the lookout for bulk .223 bullets and ran into a few sites that had pulled rounds for cheap. Most of them however are out of stock. Well, almost all, save for the only one I found with rounds. I can take a wild guess as to why buyers haven't run them out. Have a look at these:
My question is: Is it reasonable for me to assume that it would be insane to load these with the intent to fire them through a firearm and not damage the barrel to high hell? It looks like the metal bulges where the indented marks are.