Originally Posted by
Molly
The best, fastest, cheapest and most thorough way to remove even the worst leading from a bore is to fire about two or three CoW loads through it. Two or three shots will remove almost every trace of leading and leave the bore as bright and shining as if it had been polished. Give it a try instead of wandering all over Hades looking for Chore Girl mesh.
Charge your case with a medium range powder charge, add a tuft of cotton to hold the CoW up against the gas check, seat your favorite bullet and go shooting. This is so effective that I've fired several dozen rounds of HOT 45-70 loads without even a gas check or sizing, with no trace of leading afterwards. I've fired full factory equivalent loads of 6.5x55 under a cast bullet with no GC, no lube and no sizing without a trace of leading. Let's see Chore Girl come even close to that.
The only drawback is that you have to oil the bore well afterwards. The CoW loads will clean it so well there's not only no trace of lead, there's also no trace of rust protection. If you have a load that you think MIGHT lead, just take along a few extra rounds and dare them to do their worst.