Getting back to the 53 gr bullet. It has a listed .290 BC rating. The bullet is long for a 53 gr. type.I chose to go with a .223 AI in 1:12 twist, 26" barrel to basically shoot this bullet and to try pushing 50 gr bullets at or near 4000 fps.(yes,scope eye is my Hero)What I didn't consider is the bullet length for a 1:12 twist. Will it stabilize at slower velocity through a 1:12 twist ? I know it is a issue with the 1:14 twist, even in 22-250 so I can rule out pushing it faster with the .223AI to help stabilize it. The Hornady manual notes that the 53 gr V Max will not stabilize in a 1:14 or slower twist Bbls.Doesn't velocity effect the BC ?I've got all sorts of questions rattling around in this pea brain...Thanks in advance.