I'm steadily reducing my reject rate. As of now, my biggest source of rejects is boolits with minor frosting inside the lube grooves. I've attached a picture to show what I'm talking about.
What does this indicate? Is my mold borderline too hot?
Photo below. This boolit was made in a Lee .452 diameter 200gr SWC 2 cavity mold. Notice the frosting in the bottom of the lube groove. The frosting doesn't circle the entire boolit, the other side of it is relatively frost free.
The boolit itself is, otherwise, moderately well formed. Not quite good enough for me to shoot it, as it is slightly out of round. The base is .4515 at its narrowest and .4525 to .453 at its widest, so it is somewhat out of round, though not hugely.