8\" or 9\" Twist for .223 ? I'm getting there, but am now down to choosing which twist rate to choose for future .223. It would be for using 50gr up to 77 gr. and shooting as far as 700-1,000 yrds. At this point does it make a lot of difference or simply choose the rifle I'm more attracted to and deal with it? I know the general rule is faster is better, BUT!