Does anyone here use non-lead/non-toxic shot for any of their upland bird shooting? Especially sizes like #8's, #7 1/2's or #6's?

I'm a reloader and can manufacture any number of ammo types and loads - for the .410 to the 10ga (not that I own something in everyone of those gauges).

When making 20Ga ammo for CHUKARS, PHEASANTS or TURKEYS, I can increase the effectiveness of smaller gauges when concerned about pellet-count, but also terminal-performance of each pellet (#7 1/2's or #8's, or even #6's). To a lesser extent I could also see increasing 28Ga and .410 performance too - if it was indeed "necessary."

Wish I had lots of practical experience doing this, but I'm still at the "R&D" stage of my reloading.

But has anyone here actually resorted to using non-toxic shot to increase shotshell perfomance on upland game?

What about also buying 'factory loads' of non-toxic shot?