If you load rifle ammunition, like 30-06 or 45-70, with extra long bullets, you can have a lot of issues using a Mr. Bullet Feeder. The die has to be backed up to the last one or two threads to function.
We have developed a solution using the CNC toolheads that we sell, the Immortal Arms CNC Thread Extender (IACTE).
The IACTE extends the threads above the top of the toolhead, and using one of the unique special features of the CNC toolhead, the threaded accessory mounting positions, locks the die body into a solid position for loading.
The video below shows how the system works.