Casper, I can send a bag of 50 450 grain .590"s if you pm your address. They are solid base with a single grease groove and look to have a very light coat of alox-type lube. I don't remember where I got them but I bought a bunch about 15 years back when I got my snider.

I also have a hollow base mold that is marked .590" but really is about .592" (IIRC, I haven't used it in years) that I think is about 480 grains if you'd like to borrow it.

Bob