I am new to casting and am having a problem getting a bullet to come out of the mold clean.
I am using a lee bullet mold (aluminum blocks) and a lee melting pot.
For flux, I am using wax and I make sure the blocks are preheated.
I have used several types of lead (reused air pistol pellets, lead weights from who knows what, reclaimed bullets and I've mixed 5% tin with some of the pellets) and every time, I still come out with bullets that do not fill the mold completely (I get the swirl or layered effect).
I've tried experimenting with different solutions, but always (several hundred casts) the same result.
Any help from the veteran casters out there? Show me the light bulb!