First off, I’m new to the site and new to casting. I’ve never cast anything other than a fishing pole. I am an airgun hunter. I use pellet traps to capture the bulk of my pellets and slugs used for target practice. I uses various brands and I don’t know the lead composition of the various projectiles. My question is, if I begin casting slugs from my recycled airgun lead, should I be concerned about the variance of lead composition of my ingots from batch to batch? The scrap is composed of swaged and cast airgun projectiles. Keep in mind that I’m pretty green here. I’ve been reading threads, but there is plenty that I don’t know. Thanks in advance for your advice.