The caliber specific tube fed Pistol Bullet feeder is designed to be used with any 7/8"-14 threaded progressive press. Each clear tube holds 20-25 bullets depending on weight and profile. The Tube PBF places the bullet into the case mouth, for proper alignment, to be seated at the next station. Another added benefit is that it can be used with jacketed, plated, cast or swaged lead bullets. Increase load output up to 50%. Includes: Feed die, bullet finger, bullet guide, two feed tubes and four tube caps. Extra bullet tube sold separately. RCBS Limited Lifetime Warranty.