Hello,
The sizer I have is for cast lead to size down to 0.001" over.
I will try it on the copper, they are supposed to be 5/8" 0.625"
Already but my calipers said 0.628".
We will see.
Yes I may fill with lead to up th mass just a little worried if that will make them too hart to compress and engrave.
I will experiment with my cheap single shot beforehand.
Don't want to risk damaging my baby.
Nitro