Removing the butt from the lower reciever.

[flying pig]

As a side note, from the last page, if you have a really stuck pin you can use a heat source to warm the area around the pin a little and then light a candle a drip the wax onto the stuck pin. It will work it's way down the pin and lubricate it. Sounds crazy but it will get in there even if it's crazy rusted. Used it on a ripper tooth that a 100 ton press wouldn't push out.