first shot is on a clean barrel, second shot if needed is on a dirty bore, after second shot i load up #3 on a dirty bore and usually leave it loaded for 2-3 days before i'll fire that load off and clean the rifle. A lot of people swab between shots, and while thats fine to do, i prefer to know where those 2 other shots will go on a fouled barrel if i need to take that many shots.