09-05-2020, 10:58 PM
Shot 31.0 g cfe 223 with 123 SMK, Hornady brass and Fed 205m Ar primers. At 10am today the avg 5 shot velocity was 2517 with sd of 5 es 13, temp outside was roughly 65. Then shot later today, the exact same load, with avg 5 shot velocity of 2560. The temp outside was 80. Still had good sd of 6 and es of 11. Any thoughts as to why this would happen?

