The most likely reason your scope isnt adjusting correctly is because its not square. It may look it but if its slightly canted then when you try to move it up, it will go up but also slightly left or right depending on which side it is canted to.

I didnt see what scope you were using buts most low end scopes do not track correctly even when new. Even some high end ones dont but its a rarity more than a common. Nice shooting tho