I had to use my 2nd buck tag this year on a buck I wouldn't have shot otherwise, it had a crossbow bolt sticking out of it's back. Upon recovery it had only penetrated 2" at best with an expandable broadhead on it. Itfell outon it's death run but how was I supposed to know it was a crossbow bolt, it had only 12 or so inch's protruding. Couldn't let it go, bad PR to say the least if some non hunter were to see it. Anyway you did the right thing. BTW, very big BB.