I’m curious as to the chrono results I’ve been getting as I start loading .223 and whether or not the range of velocities I’m seeing is reasonable.
The extreme spread for the two loads I’ve tested (H-335 24.5gr. or 25.0 gr.) is 130 fps and 160 fps respectively. Is this variation within the bounds of what most people see and would the use of mixed brass be enough to account for the range of velocities?
Other facts:
Bullet: 55gr MG FMJBT
Powder: H-335 24.5gr. or 25.0 gr.
Primers: WSR
Brass: Mixed once fired
Press: Dillon 550B w/RCBS x-Size and Lee Factory Crimp
The extreme spread for the two loads I’ve tested (H-335 24.5gr. or 25.0 gr.) is 130 fps and 160 fps respectively. Is this variation within the bounds of what most people see and would the use of mixed brass be enough to account for the range of velocities?
Other facts:
Bullet: 55gr MG FMJBT
Powder: H-335 24.5gr. or 25.0 gr.
Primers: WSR
Brass: Mixed once fired
Press: Dillon 550B w/RCBS x-Size and Lee Factory Crimp