Huvius! Brilliant!

I searched and searched the web for info on this, but it seemed nobody had done it before. Good to see a like-minded individual out there. Very unfortunate the response you got though. I actually had the same thing happen on another forum, both when asking advice on coming up with an "unknown" load, as well as AFTER I published the info, showing that I didn't blow myself up and destroy the world, as most of the naysayers and safety police said would happen. Bunch of wankers...

So far I've only loaded them with the copper facing forward. There were a few that keyholed, but mostly all the slugs flew true, based on observing the holes in the target paper. I think that at such close ranges, the slug doesn't have enough time to "tumble". But that's just speculation.