[yella hammer]

Ive heard of annealing brass like that but never cast bullets
Ive never seen a cast bullet change color

I have also read about attempts to create a "partition like" cast bullet but I forget where and how

 

[lloyd smale]

try finding a buckshot ball that fits as good as possible in the nose of your mold place mold in the pot until it starts to melt and then fill remaider of mold with harder alloy.

Ive heard of annealing brass like that but never cast bullets
Ive never seen a cast bullet change color

I have also read about attempts to create a "partition like" cast bullet but I forget where and how

 

[hubbard]

"Tempered" Cast Bullets?

there is an article posted in the tech notes section of the beartooth bullets web site titled quench-anneal by the bullet caster which covers this subject in depth.

 

[propmahn]

"Tempered" Cast Bullets?

the mans name is paco kelly and i would believe what he tells you. he is well respected over at www.sixguns.com and www.sixgunner.com in fact if you go tot he forums over there you can ask him yourself.