What's the best barrel twist for a 300 Win mag, the new 700 SPS Long Range has a barrel with a twist rate of 9 1/8" !!!
http://www.remington.com/products/firearms/centerfire/model-700/model-700-sps-long-range.aspx
http://www.remington.com/products/firearms/centerfire/model-700/model-700-sps-long-range.aspx