Well, I used to put the breech block in a vice, and strong arm it.
Then I built a bending tool very similar to this one:
[IMG]
![[linked image]](http://i12.photobucket.com/albums/a208/jfemars/BarrrelDroopAdapter.jpg)
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Here is the whole thread from back on page three:
http://www.network54.com/Forum/184474/thread/1219889501/last-1232145384/Can+a+rws+46++be+a+drooper
The barrels that I correct normally need droop removed instead of added.
HTH and Good luck,
Jeff