The Waterbury Farrel Primer Insertion & Varnishing Machine, designed based on a rotary style system, precisely inserts, crimps and varnishes primers and case mouth. The process involves case feeding, case check, flash hole check, primer feeding, primer insertion & seating, primer orientation verification, primer crimping, explosion/burning verification, primer depth check, primer sealant dispensing, mouth lacquering, inspection for varnishing, primer sealant curing etc. before ejecting acceptable primer inserted and varnished cases. The rated output for pistol and small ammunition rifle caliber is up to 250 cases per minute.