X-10 Rifle Bullet Feeder Caliber Conversion Kits include everything needed to connect the X-10 Rifle Bullet Feeder Collator (sold separately) to the X-10 Progressive Reloading Press. Kits include a caliber-specific micrometer adjustable seating die assembly with an on/off switch. The bullet feed system is integrated seamlessly into the X-10 Tool Head to feed and seat bullets in the same station freeing up a station for bullet crimp or other operations. Features: Kit includes bullet feed die assembly Integrates seamlessly into the X-10 tool head Feed and seat bullets in the same station Micrometer for adjustable seating depth (0.001") for fine-tuning bullet seating