User blog:Hammer-Head 1/I Need Undead Help

I need help finishing the last undead sharpshooter challenge i have to snipe 5 undead(and kill them) in 8 seconds, ive tried hogtying them and shooting them point blank but thier heads move and i miss.Tis is the last challenge for me till im 100% done with it any and all help is appreaciated,you caan leave ideas on my posse page Red Dead Hammer Heads