I just got a new Lee 2 cavity 452-160-RF the other day. Cleaned it with brake parts cleaner, then Comet and a tooth brush. Preheated. Lee pro 4-20 pot with cleaned WW metal with a little extra 50-50 solder. Started casting when the Lyman thermometer said 850. Bullets coming out frosty , but the middle band of the bullet is always rounded, mold not filling out good.
Looking at the mold faces, there are no vent lines whatsoever. Did I just get a bum mold ? I have 20 + Lee molds. This is the first 2 cav. I have purchased in a long time. Most of my Lee molds are 6 holers.
What kind of venting does Lee use on the new style 2 cavity molds ?