When attach to socket its not accurate (properly) after drop weapon

i made weapon equip system.
when i press key it drop (detach) the current weapon blue print ( simulate physics and enable collision) …then attach the weapon blue print (disable collision and stop simulate physics) to socket …
when i repeat for the weapon already dropped it attached in under the socket
in the pic i eject from the player and see where the weapon position
http://oi60.tinypic.com/293zgiw.jpg … u can see the problem … when i try to move it on the editor its replace itself properly in the socket
… and this another pic from another situation …http://oi62.tinypic.com/169g8j4.jpg

another pic

this happen just for the weapon i was equipped then dropped after

another pic http://oi62.tinypic.com/axo1gk.jpg
plz help meeeeeee

Make sure when you parent it to the socket it is set to “snap to target”

i did that already