I have the Outers Foul Out unit. It worked great when I was shooting lots of lead SWCs in IPSC. Had a friend who insisted lead could be removed from his 1911 by shooting a couple of FMJs. The Foul Out proved him wrong. I believe it's still available from Midway. Not cheap, but I'd trust it over anything I rigged up on my own. Others are probably smarter than I am and able to effectively build their own device.