kbstenberg
07-18-2010, 08:51 PM
How much variation in BHN do you see within a single batch of bullets?
If a consistent alloy is used, all the ingots come from the same batch an testing for BHN was done an a random sampling. Say 9 ingots were tested out of a 50lb. batch. An all the numbers came out quite close to each other.
Would the major factor in a different BHN in the cast bullets be from mold temperature when that bullet was cast? Would the length of time the bullet stayed in the mold also have a bearing on how hard it tested at?
I have just started using the Lee tester, an also started testing my bullets for there expansion properties.
Kevin
If a consistent alloy is used, all the ingots come from the same batch an testing for BHN was done an a random sampling. Say 9 ingots were tested out of a 50lb. batch. An all the numbers came out quite close to each other.
Would the major factor in a different BHN in the cast bullets be from mold temperature when that bullet was cast? Would the length of time the bullet stayed in the mold also have a bearing on how hard it tested at?
I have just started using the Lee tester, an also started testing my bullets for there expansion properties.
Kevin