Thought I saw someone post loads for 223Rem with 400 primers but cannot find it. Nosler book lists the 223Rem with 40 and 50 gr BT with Rem 71/2 primers. Since I have some CCI 400 on hand I am trying to find a starting/max load for 223Rem 40BT and 50BT with CCI 400 primers. Anyone got any? Thanks.