I'm debating a powder switch or pushing my current loads for 223/5.56. My rifle is a 16" modern sporting rifle... chambered 5.56 1:7 before you jump me . Velocities are coming in lower than I would like at max 3014fps, was hoping for closer to 3200fps at max and maybe a accurate load between 3100-3200. Current max only has moderate primer flattening with win primers, no flattening with cci. Running mixed brass, but I separate 223 and 5.56 brass. I can't decide whether to push charge weight since it is 5.56 and i am using 223 data, or try switching powders, the load shoots really well.
Any suggestion on keep the load or switch. If switch, any recommendation on temp stable powders and loads to look into would be appreciated.
current load
24.8g benchmark
hornady 55g sp bullets, seated way long, to max mag length, but the base of the bullet goes the full length of the neck. still about 0.50 off the lands if i remember right.
winchester primers
velocity 2927fps
es 29fps
note: max charge with exact bullet listed at 25.6g gave me 3014fps with an ES of 42fps. The 24.8g was just accurate. Was re-zeroing my scope today, not really trying and I came in just over 1MOA with my current load, 50yds sight in.
Any suggestion on keep the load or switch. If switch, any recommendation on temp stable powders and loads to look into would be appreciated.
current load
24.8g benchmark
hornady 55g sp bullets, seated way long, to max mag length, but the base of the bullet goes the full length of the neck. still about 0.50 off the lands if i remember right.
winchester primers
velocity 2927fps
es 29fps
note: max charge with exact bullet listed at 25.6g gave me 3014fps with an ES of 42fps. The 24.8g was just accurate. Was re-zeroing my scope today, not really trying and I came in just over 1MOA with my current load, 50yds sight in.
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