I have BT's Swagging dies for turning 9mm brass into .40 jacketed bullets, although I haven't used them yet. I have tons of 9mm brass and have been separating out all of the "WCC" and "WMA" headstamped from everything else thinking that by using all of the same headstamp it might produce a more consistent bullet weight (although probably not, LOL) My "Issue" up until now is how to anneal the cases because my Wife just wouldn't go for me using her oven. But my Son bought her a Pellet Barbecue grill and she was going to get rid of her perfectly good Stainless 6 burner gas grill. So before she could haul it off, I snagged it and put it in the Garage. I'm thinking that one this big will allow me to anneal a large batch of 9mm brass all at once. Now I just have to get out there and do it, LOL!