Transformation of object based on axis ive been doing some sculpting in blender and i run into a problem that i need a proper transformation of my object. I tried with rotation but it does not help. This is what im talking about:

I want the last horn, the big one, to actualy be like the first two horns : &quot;MIRROR-ED&quot; , but i seem to cannot do it right. This is what Happens when i do SHIFT+D to copy object(Duplicate)

I tried rotation, and this is kinda &quot;best&quot; what i can get :

Which does not look right.
So, how do i get a mirror of my right side big horn to be on left?
Actualy, the first two horns had the same problem, but its not that visable, so i left it like that. But for big one i need fix. Any help?
You want a mirrored copy of your horn, right? Select your horn, apply its rotation and scale with ctr A, duplicate it with a shift D (or alt D if you want a linked duplication), then press S, Y and -1, the duplication will be mirrored.