To answer your question about the lead. I have had to replace a barrel on a bfr and one on a fa bc of cheap lead bullets. I sent it in to john at fa and he had told me hes seen the pittig or gouging i sent it in for when being shot with cast that was not made from a virgin allow. Most commonly from newer wheel weights. Not sure why and not sure what all this means but i thought i found a good price on ammo and bought a few boxes and every gun ive run with those bullets had the same problem with the barrel. Fa did not think it was something that typically affected accuracy but it was a imperfection i could not live without. Simce that time ive found that ive had nonprobs with. Cast performance and beartooths. Just stick with a premium hardcast bullet and you wont have any problems