Lyman round ball mold

[Sweeney]

Got this recently from a friend and i plan to list on here for sale. I think it .44 for a .45 cal rifle. Is that correct? and what do the other markings indicate?

[JBJ]

440 is the nominal ball diameter and the 380 refers to the cherry used to cut the mold. This might help you a bit.
http://ps-2.kev009.com/ohlandl/310/Lyman_Mold_Reference.html#:~:text=Lyman%20Mold%20Reference&text=There%20is%20a%206%20digit,the%20final%20number%20is%20dropped.&text=486%20is%20the%20cherry%20number%20used%20to%20cut%20the%20mold.

J.B.