RedFredMi

Does anyone have a key or guide for the different numbers and letters assigned to conversion plates, powder funnels and pins that ID what calibers they will work with on my Dillon 550? Example: conversion plate "O"---powder funnel "D" and locator pins "3" What calibers??? I would like a master list of all dillons products and their cooresponding calibers and have had no luck finding it...help!