+1 on robocop's advice. I like would reccomend the use of brake cleaner (cheap at the local parts house) to flush the dies while cleaning. Much cheaper than Gun Scrubber, but works equally as well. Just make sure that it is trichloroethylene based (around 80%+).
"The millions of people, armed in the holy cause of liberty, and in such a country as that which we possess, are invincible by any force which our enemy can send against us“ ...... Patrick Henry March 23, 1775