Well you see I originally purchased them for my 22/250. I thought I had read that a typical 1-14" twist would stablize them but in the Barnes manual it says that (under 22/250 info.) the rifle must have a 1-12" or faster to stabilize the 53 gr. TSX.
So, I have a 223 with a 1-9" that I thought about using them for, hence, my question regarding 223 velocities.
Landrum