24cal. (6mm) FROM 22cal Carbide Neck Up Mandrel
This carbide expanding mandrel is specifically sized and designed to use for necking 22 cal brass up to 6mm, mostly for necking 220 Russian brass up to 6mm for making 6PPC.
The long gradual taper of this mandrel reduces the amount of work it takes to neck up 22cal brass and sizes it properly for neck turning.
this mandrel makes necking up .220 Russian brass to 6mm easy , very smooth .
Very well made tool, but can't wait to try it out on some 220 Russian cases for my 6mm PPC.