I hate to say this in public, but the 500 isn't worth the powder it takes to blow it to hell. All it is, in my experience, is bark and bite and zilch ballistics. I won't wreck my scopes or shoulder for what that stupid round can do. I can get better performance without the pain from many of my Handis......45-70, .445, .45LC, etc. To me it's just a junk fad caliber. I sure as hell wouldn't shoot it in a handgun.
End of rant.
Pete