.223 Rem from Buckshot POWDER LOT BULLET BBL FILLER CHARGE VELOCITY WC820 47323 55 gr 26 6.0 - 10.0 1450 - 2051 WC820 13328 55 gr 24 10.5 - 12.0 2075 - 2153 WC844 not given Win 55 gr FMJBT 20 26 - 28 3015 - 3310 WC846 49601 SRA 50 gr PSP 26 22 - 26 3021 - 3450 WC846 49601 SRA 63 gr SMP 26 22 - 26 2840 - 3275 WC852 47287 SRA 63 gr SMP 26 24 - 30.5 2262 - 2836