people have developed various ways to do this depending on THEIR environmental conditions .
here in the south with very hi humidity most of the year I still do it this way
Pre heat Convection oven to 400 degrees
The way I Dry Tumble is to get a plastic container with snap on lid that has a triangle and #5 stamped on the bottom (this is VERY important to get acceptable static) I have gone to using Ziplock S Round (2 cup) twist lock containers (Rubbermaid equilavent will NOT holdup) , Others use cool whip containers
add enough BLACK 25 gram Airsoft BB's top cover about 1/2" deep on bottom .. (2 to 3 layers deep)
add 1 teaspoon of powder for cool whip containers (for the first load ONLY). 1/2 teaspoon is more than enough for S Round Containers
add 50 to 100 bullets . The smaller ones like 223 would be 100 larger like 45 ACP 230's might only be 30 at a time
snap on lid and swirl the container to the count of 30 then shake fairly hard up and down to the count of 30
lift lid, Pick up bullets one at a time with long needle nose pliers .. Tap pliers on container edge to shake off excess powder back into container
Just started doing this with double layered bowls glued together
Speed up process, knocks off excess powder so you don’t have to tap bullets on container, and leave just the bullets in the bowl for easy pickings
http://castboolits.gunloads.com/show...-from-the-BB-s
Put bullets on cookie sheet lined with Non stick foil (will last many many cycles)
Put in oven for 15 minutes . pull out let cool and put in a bullet box
Oven .. You need to be sure what temp the Oven is actually cooking at... your aim is between 375 and 400 degrees
Oven needs to be preheated before putting bullets in .. I found my oven take approx. 8 minutes to reach 380 degrees
do a few small batches say 10 bullets till you find what temp YOUR over gives a nice even flow to the powder.. too cool and you get clumps.. to hot and you get nice looking colored clumps melted lead puddles..
a convection oven with a fan to distribute the heat evenly throughout the oven will give you an almost sprayed slick look..
Blue Nitrile gloves can be used to pick up bullets .. So far other gloves have proven to not work ( they will remove powder everywhere the gloves touch )
Or you can always buy a Harbor Freight Electrostatic PC gun for about 59.00 on sale.. This will give you the smoothest finish.. just more setup and cleanup time
NOTE:
At Extreme Hi Velocities you may get black streaking. It the PC Coating smearing .. The only product we have found to clean this quickly and easily is BORE TECH ELIMINATOR