I added a new tool to my home workshop that gave me a new way to try sectioning. I am a total novice at this and the past only sectioned large 25MM & Up inert rounds. This tiny stuff was in a way much harder and the first time I fused the powder so I could keep it in the casing. The lead in the projectile had a small internal crack. Not sure if I caused it or a manufacturing fluke? I attempted a 35 Remington next but at the very end, the lead core fell out of the copper jacketing when I was buffing it on the polish wheel.
5.56 M A L 10-81