Re: best 300 win mag barrel specs.
More important than its physical length would be for us first to know what bullet your building it around first. Factors such as twist, cant and squeeze have as much, if not more, to do with velocity as barrel length. Note also that recoil is a product of physics that starts long before the bullet has left the muzzle! As such numerous test will support the theory of shorter barrels, within reason, can be more accurate. Especially if the shooter has any positional or procedural issues with recoil management they will become more pronounced as the barrel length is increased.