I'd like to get back into reloading and casting. I didn't go too deep last time I did, just basic casting and loading for .38/.357. I've recently acquired a G88/05 and I think it's the perfect candidate to get into rifle reloading, not to mention casting. My bore slugs out to .323". What would be a good mold to start out with? I still need to get pretty much everything else equipment wise, but I figured I'd start with a mold...