[tatersaled]

Looking at some of the shot that I’ve made every once in a while I’ll find a hollow sphere.
Does anyone else find these?
Erwin

 

[tatersaled]

tt

 

[tatersaled]

tt

 

[gnprts]

Hey tatersaled .. What are you using for coolant?

 

[tatersaled]

For my coolant I’m using water soluble cutting oil.
I might fine one shot in a hand full that’s like the hollow sphere.
I’m just wondering if I’m at the point of getting the lead to hot, or if its the mixture of lead I’m using.

 

[Jim101]

Check you drop distance into the coolant, Try shortening it up a bit. I use 3/16ths inch drop. Your coolant might be a little bit too thin also. I doubt it's because the lead is too hot.







Jim

 

[gnprts]

tatersalad ... I use water soluble oil and water in a three to two ratio and use a paint type mixer in a drill to mix the solution before adding it to the cooling tank.. I keep the coolant stored in plastic buckets between shot making sessions It sounds like there may be a pocket of coolant with not enough oil since the hollow shot are random.. Just a guess....

 

[phirel]

I used to get a few shot like that. I thought, without any real evidence, that it occurred at first when my coolant was too cold.

Pat Ireland