Sunray
Member
Flat primers are a sign of pressure. No mushrooms involved. Pierced is whole other thing.
Anyway, you need to work up the load for your rifle. Not pick one and hope.
24.8 grains of CFE 223 is below minimum for a jacketed lead core bullet. You're using data for a solid copper bullet.(24.7 to 27.4 Grs of CFE with a 55 Gr bullet is for a TSX)
According to Hodgdon, the start load for a 55 grain jacketed bullet and CFE223 is 26.0 up to a MAX of 27.8.
Anyway, you need to work up the load for your rifle. Not pick one and hope.
24.8 grains of CFE 223 is below minimum for a jacketed lead core bullet. You're using data for a solid copper bullet.(24.7 to 27.4 Grs of CFE with a 55 Gr bullet is for a TSX)
According to Hodgdon, the start load for a 55 grain jacketed bullet and CFE223 is 26.0 up to a MAX of 27.8.