Tried casting some HBWC today without much luck. Many of the bullets had a deep wrinkle part way around the OD or small voids.
I cleaned with brake cleaner and a tooth brush, preheat on a hot plate. Lead is half WW half shower liner and 1% tin at 700 degrees. Also raised mold guide to within 1/4 inch of the nozzle thinking stream was cooling.
Any suggestions as to the next logical thing to try? Don't want to up the heat if not necessary.
TIA
Gene