i have , they don't work as well
i even patterned some and they were not as good as traditional lead loads
if steel was as good or as cheap or as effective we would have transitioned without having to be forced , much like EV's but unlike cars when you are taking a life you owe it the quickest and cleanest death you can achieve and to substitute what has been used for ages as being the most effective with something worse how do you justify that ? unless the true end goal isn't just the removal of lead..........