In the 1980's Winchester XX 2.75" 1.5 oz.#5s, from an Ithaca 37 pump
Late 1980's to early 1990's Federal Premium 3" 2 oz. copper plated #6s, from a Stevens single shot
Late 1990's Winchester Supreme HV (black hull) 3" 1.75 oz. copper plated #6s, from a SBE
2012 to today Hevi -13 #" 2 oz. #7s or #6s, from a SBE II
Jim