Why does LE133 exist? Is it similar to the change from 64 to 62gr Gold Dot in .223, created solely to compete for a specific large contracts that mandated 8 pellets vs. 9 in their verbage, or does it do something special/different aside from LE132? Viewing Federal's ShotShell book, they look to have identical performance, except LE132 puts 9 on paper instead of 8.
http://www.le.vistaoutdoor.com/downl..._Data_Book.pdf