Appreciate the info! Ordered a couple boxes of the 335gr. CorBon load to give it a try.

My woods walking load in my Mountain Gun is a 255gr. hard cast Keith at 960fps (factory Underwood ammo). Plenty of oomph for 99% of what I would need it to do in my neck of the woods (black bear, but nothing bigger). I figure if I have the S&W strapped on and not a Ruger, it couldn't hurt to pack a bit more punch on the rare occasion the Keith load isn't enough. Once I get the CorBon load chronographed, I'll post up the velocity.