I had my Purdey out of the safe yesterday, and in all due respect to SP2 there is no way to just rake both hammers back with one hand. You would have to have a hand of steel and the strength of an ape. The mainsprings are far too stiff to allow for this.

I think the technique described by DUGABOY1 or just the technique of cocking each hammer individually with the thumb of the right hand is the only way to get it done.

Regards,
CptCurl