I have never used TSS, or any other non-lead shot, but have read many Threads and debates here concerning the pros and cons of the stuff. I happened upon this article that had a lot of information I have not seen posted here. So for those who love it, those who hate it, and those who don't give a damn either way, here you go...

https://www.outdoorlife.com/guns/tungsten-super-shot-deadliest-bird-shot/?amp