You might want to use Berger's Twist Rate Stability Calculator go get a better idea as it takes into account temperature and altitude???Thinking about getting a Seekins HIT rifle & noticed that their 308 has a 1 in 11.25 twist. My 700 AAC has a 1 in 10 twist which I really like. I generally shoot 178 gr. bullets & go out to 1000 yards. Will the 1 in 11.25 be fast enough?