I have a question to ask about proper neck expansion for cast bullets.
My rifle slugs at .3105" so the proper sized bullet should be .3125". If I hone out my bullet sizer to .3125, using the current expander of .3110" leaves a difference of .0015". What is the ideal difference between the resized cast bullet and the inside diameter of the resized neck of optimal accuracy? I don't think I can get away with the current .311 expander. A bullet sized at .311" using the Lee sizer die kit fits just right.
My rifle slugs at .3105" so the proper sized bullet should be .3125". If I hone out my bullet sizer to .3125, using the current expander of .3110" leaves a difference of .0015". What is the ideal difference between the resized cast bullet and the inside diameter of the resized neck of optimal accuracy? I don't think I can get away with the current .311 expander. A bullet sized at .311" using the Lee sizer die kit fits just right.