I really enjoy casting bullets. Personally I have found that leading is more a function of a properly sized bullet, rather than the hardness of the bullet. A good properly sized and lubed bullet does not lead the barrel. So as Smith Crazy says you should measure your revolver and cast your own, or have a custom caster size them for you. a good reputable caster will do that for you. Try casting, just be careful, it is very very very addictive. You will soon have a mess like me. Tom.