Looked at their website. They really don't say much about their lead conicals. I'm not sure what it might be that distinguishes from other lead conicals. Very Pricey!
The website doesn't say why their bullets are so "revolutionary"....,
I think if I'm going to do a conical, I will stick with a REAL bullet from Lee... 300-380 grains depending on which mold I use. And I can mold them for much less than a dollar a projectile. Frankly if 300 grains doesn't "get it done", I'm hunting something that I should leave alone, like a Grizzly, a Polar Bear, a Tiger, a Rhino, a Lion, a Cape Buffalo, or an Elephant