i ran a 3/4 grey 1/4 bull bitch bout 15 years ago ,murder on roe ,but would,nt even tackle a fox,no matter how many you put in front of her she would,nt even grab them.gave her to a keeper friend who used her on fallow deer,now she was getting amongst plenty but lacked in the brain department so eventually she ended up taking 1 right to the forhead and killed instantly.need to no what there doing with the big beasties.lol