It was the last warm(ish) day expected or a while, and I had the afternoon free, so I fired up my lee bottom pour put and put some stick on wheel weights bars in, and took my mold out for a test drive. Once things were running hot enough, I got what's below. I had some issues with the slug sticking to the drive key insert, so suggestions on that would be appreciated.
a better, higher resolution picture of the slugs (also a bit more of a closeup.. click for full resolution)