ORIGINAL: timbercruiser
Sounds like you hit close to the spine, just close enough to temporarily stun her. If it was a .308 there is a chance the bullet didn't expand for some reason.
X2. Sound like you gave her a stinger nicking a nerve or somethign and causing a temporary paralizing stun but wasn't severe enough. With the high shot you likely didn't get much for vitals and she ran for along time even though her body was acting weird. Probably why you heard crashing. Her spine situation probably wasn't making her function properly but wasn't enough to kill her at the time. WCL