Simone , yes that is the WC that I have in a 6 cav mold . If you alloy is too hot the bullets will be a bit stubborn about dropping from the mold . Like I said , I quit lighting a candle and smoking my molds yrs ago . It's not necessary , trust me . I use a hot plate to warm my mold while the alloy is melting . I use a middle heat setting on the hot plate . You will get it right and won't need to buy another mold . That LEE mold will do just fine , take you time . Regards Paul