Does anyone know what powder Hornady uses in the Hornady Match .223 Remington for their 75gr BTHP? I have started load development for a new .223 with a fast twist. I passed a few test loads through it, but while visiting my cousin handed me half of a box of these to try and it flat out drove them. 1/4 MOA off of a bipod on my truck hood. I thought if I could identify the powder perhaps I could save some time and work since it liked them so much.
According to local legend, Ramshot TAC, probably a non-cannister grade version. It is also allegedly used by Black Hills for their heavy bullet match ammo.
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