Hello All ,
Not sure if this is the right place to post, but I have heard the term "Bumping" to enlarge a cast bullet's dia.
I have about 500 bullets that were sized .358" but I actually need , .359" or larger for my cylinder throats in a pre-27 model S&W .357 mag. These are 18 BHN hardness Is this possible & if so how is it done?
Thanks