Copy transforms Constraint gives strange scaling and transforms?

Question

I am using a Copy transform Constraint , But when I apply it this happens .

I am trying to avoid , of course the mag stretching . BUT I have tried using Only, copy rot and Loc. That miserably fails because it moves the armature to the middle of nowhere, and rotates it awkwardly.

I am also trying to avoid Any scaling, I have applied Scale, to the armature and mesh, but that dos not work.

I have tried using "child of", It works but it doesn't follow it. It moves with it but lags behind and just doesn't cooperate with me.

Answer 1

It was the rig all along , The wrist bone was placed back at the elbow! , So i extruded a bone from the tip of the middle finger and used that , it had proper scaling and rotation.