Is this the same deer you posted about the other day??

I listed a bunch of questions there - if you care to answer them - it may help

Well.....Its to late to find him - and It is impossible to tell where you hit him.

A 70 yd blood trail is very, very, short. All I can say is there was more blood out there that you did not find.

Was the shot a complete pass through??

If you really want help to learn what you may have done wrong you need to really describe exactly what happened and what you did to find him.