Dillon 550C Primer Cup Collar

thingiverse

This is an extended primer cup adapter for the Dillon 550, designed to prevent spent primers from scattering across the floor. Proven effective on a 550c press, it will work seamlessly with all 550 series presses. A generous clearance ensures that the primer chute won't rub against the collar, even when the handle is pushed forward during priming operations. No additional supports are required if printed with the top of the adapter flush to the printing surface. When printed at a layer height of 0.20mm, this adapter should fit snugly into place without coming loose.