OP it is a very common mistake with all scopes that I see alot when we shoot prairie dogs. The "up close" shots get missed because the shooter doesn't realize that what he sees in the scope is 1.5 to 2" above the bore at close range. It is hard to mentally adjust and aim "high" to make those shots. Regardless of scope or quality, adjustments for parallax etc.

BnB my condolences as well. I have had to make that trip myself not all that long ago. My sympathies to you and your family. Take care my friend.