Many years ago Jeff Cooper wrote of his way of removing lead from pistol barrels. He simply fired a few full jacketed rounds to push out the lead. They certainly fit the bore tight and I found that the small amount of copper fouling is easier to remove than lead fouling. (5)rounds seems to work OK. The jacketed bullets polish the bore also. I found the bore to be polished well enough, after a while, to prevent any leading. I used very hard lead bullets though, #2 alloy. The copper "wool" method works OK too. It is just more of a fuss in my opinion.