I came across some old (as in probably 60 + years old) Zero 38 cal. cast lead bullets from my dads old reloading stuff still in the box. Marked on the box, 148 Gr. (swaged) WCHB 38 Caliber. I called Zero to see if I could get any info on these since the coating on them is a bit strange and I was told they used to use a graphite coating many years ago. Anyone know anything about these and would YOU use them in your guns? Zero has actually offered to exchange them with modern bullets at no charge if I want. Sorry for the poor pic quality but it is tough getting good pics of a very dull bullet!