Ok, im back on the 223 again haha. Glad to see how this thread is going since i started it ages ago.
I have a shite load of Hornady 55gr BTSP ( the bulk ones with cannelure) that ive got a good shooting load for at 3010 fps (short barrel). i tested for the BC ages ago but lost the data, and i know the advertised one is wrong. Anyone got a more accurate BC for them?
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