I am building another AR and have decided to go all out with trying to make it as accurate for longer distance shooting as I can get it (or at least as accurate as I can afford). I've been looking at White Oak barrels. http://www.whiteoakarmament.com/ They seem to be decent quality, although I'd certainly welcome opinions on them...or recommendations for better barrels. But where I'm stumped is on deciding which twist - 1:7 or 1:8. I know these ratios are both good for shooting heavier rounds. My thought is that 1:7 will have slightly better results than 1:8 since it will offer just a little better stability for the bullets in flight. Your thoughts? Barrel mfg opinions?