So I got two bags of these in a trade with a lot of other reloading equipment but I have never seen a bullet like this. They are .224 and weigh about 50 grains the second bag weighs 55 grains. In the picture I have one setting next to a 60gr Hornady soft point .224. I originally thought unfinished bullets but i thought typically the excess was folded up and wrapped not left as some sort of hollow base? Thanks for any info!