Knight Bighorn or UL/Barnes 290-EZ/Triple7 have accounted for a lot of dead deer and elk for my group since WA started allowing non-lead bullets.
I'm genuinely mystified as to why anyone would choose to hunt with Powerbelts now that honest-to-goodness bullets are available and legal, saboted or not, either non-tox (Barnes, Lehigh), or lead (Hornady, Speer, etc.). Powerbelts are easy to load...that's their only (minor) advantage.