Bloodthirster BS 10
Herald of Khorne BS 7
Bloodletters BS 5
Bloodcrushers BS 5
The only reason I can ever see there BS being used is with fortifications but other then that is this just a means to mess with khorne by saying "hey khorne here's a really good BS statline but no range weapons for you" *tzeench dickary at its finest*
Wile the soul grinder has a BS of 3