First...You don't really know what bullet she was using...

Second...A heart shot deer does kick up it's back feet...A gut shot deer usually hunches up its back...

Third...Blood trails can be scarce with any bullet or rifle combo...One of the sparcest blood trails I tracked this year was from my brother's .270...

All muzzleloading bullets have advantages and disadvantages...The Shockwaves advantage is it is flat shooting...If shots are within 100 yards a hollow point type bullet will usually give better expansion...

I've killed or tracked deer hit with round balls, PowerBelts, the 250 and 300gr Hornady XTPs, the 250 and 300 Barnes MZ and the 260 and 300 Knight lead
bullets...Blood trails really are dependent on range, amount of powder used, where the bullet hit the animal, how high up on the animal the hit was, how low the bullet exited and even if you had an exit wound...There are many variables as to how much blood ends up on the ground...

If you don't want blood trails, put it through both shoulder blades.