Lyman 55 measure drop tube?

Hi all,

I picked up a used measure and it has a removable fine threaded 5/8" drop tube.

Is there an adapter for 7/8-14 or maybe a separate drop tube?

How is the 5/8 tube unit used? Maybe with the old 310 press?

Thanks

Lyman has parts:

https://www.lymanproducts.com/55-adj...lacement-parts

Thank you!

You need the 7/8-14 adapter and locking nut from the parts list.