Leading can be controlled by proper sizing and lube.. l made some

sizing/lube changes recently for my 629 Magnum Hunter.. l miked

the cylinder and found it was .430''. l then purchased a .431'' sizer.

l was REWARDED by a 20% increase in scores on my targets for a

minor investment in labor.

As for leading, l don't worry that much about it unless accuracy is

suffering... l personally think more good barrels have been worn out

from cleaning than shooting