I have, since the weather has been bad the last couple of weeks doing a bit more casting. It is no secret that I like a 50/50 blend of pure and WW for most of my boolit alloys. I never was bothered by frosty boolits from time to time, but never tried to get them to come out frosty either. Until Now. I have started striving for a bit more accuracy than I ever have before so I have been pretty strict on my specs for what constitutes a keeper. They have to be as flawless as the eye can detect, and weigh with in + or - 2 tenths of a grain.
Here is where the frosting comes in. Through my casting of various weights and calibers I started noticing that I was not culling any of the frosted boolits upon a visual inspection. I was looking for wrinkles, rounded corners, rough sprue cuts, anything that could possibly cause a variation in weight. The frosted boolits had good good fill out sharp corners on the lube groves and the sprue cut was nice and clean. What really impressed me was that when I started dropping them on the scale I found that 98% of the frosted boolits fell within my + or - 2 tenths of a grain, and the ones that were out of spec were less than a tenth of a grain out.
So from now on I not only want my cakes frosted but I want to see a good coat of it on my boolits.
Best wishes from the Boer Ranch,
Joe