lksmith
05-04-2013, 10:53 PM
I have both of the above mentioned molds in an effort to make an affordable subsonic plinking load for my 300AAC/Whisper.
The issue I am having with both is I can't seem to get pretty booleits from either. I either get frosted boolits or ones with what I call cast channels where the lead was solidifying before the mold was full.
Accuracy seems pretty good either way since I cull any that aren't in the range I think is right weighed without lube or GC.
I use a Lee 20# bottom pour furnace. I let the mold sit on top of the pot while the lead is melting to make sure the mold is hot enough and let it cool. I have tried both sprue plate up and sprue plate down, thinking the sprue plate being too cool may have caused the problem. I have also tried pressure casting by putting the spout on the plate for a few seconds and then forming a puddle. I have used wheel weights and pure lead with the same channels showing up.
I have casted Lee 170 FN GC's with no channels or frosting with the same alloy from the same batch and got beautiful boolits.
The issue I am having with both is I can't seem to get pretty booleits from either. I either get frosted boolits or ones with what I call cast channels where the lead was solidifying before the mold was full.
Accuracy seems pretty good either way since I cull any that aren't in the range I think is right weighed without lube or GC.
I use a Lee 20# bottom pour furnace. I let the mold sit on top of the pot while the lead is melting to make sure the mold is hot enough and let it cool. I have tried both sprue plate up and sprue plate down, thinking the sprue plate being too cool may have caused the problem. I have also tried pressure casting by putting the spout on the plate for a few seconds and then forming a puddle. I have used wheel weights and pure lead with the same channels showing up.
I have casted Lee 170 FN GC's with no channels or frosting with the same alloy from the same batch and got beautiful boolits.