The only thing I can think of is that most of the longish shooting back east is NRA Highpower. 75+ grain bullets are the norm there, and the online forums reflect that. I still have a bunch of heavy bullets from shooting that game, they don't get used at all for 3 gun. Nosler Ballistic Tips or Hornady V-Max is what I've used for years when I traveled west to shoot Rocky Mountain 3 Gun.