I have several questions about the ballistics of an adjustable muzzle break. I just bought the Savage Long Range Hunter in 7mm Rem Mag with a 26" barrel. It has an adjustable muzzle break on it and I found out that the rifle actually has a 24" barrel with a 2" muzzle break (which was upsetting to me). Some of my questions: Savage says that the rifle had a 26" barrel when in fact it's a 24" barrel with a 2" muzzle break. I know a muzzle break is slightly larger than the actual barrel. With that being said, if I have the muzzle break in the off position will that act as an extra 2" on the barrel? With the muzzle break closed, will the rifle act as if it's a "true" 26" barrel? Is that why Savage claims it's a 26" barrel? Will sighting in my rifle with the muzzle break open effect the accuracy of the bullet if I were to shoot it later on with the muzzle break in the closed position? I appreciate all the feedback I can get.