Best 6.5 twist? September 24, 2019, 09:18:48 AM I am trying to chose a barrel manufacturer and twist for a new 6.5 CM build. I hadn't thought a lot about twist for 6.5 in the past like I do for .223. I shoot mostly 140-147 grain bullets, and that is a pretty static weight. What is the best twist for that weight? Since there is usually no choice but 8 for factory barrels I hadn't thought about it before. Just looking for opinions and why. I shoot long and short range mostly from a bench.