Hello, I'm saving for a new rifle is a Weatherby Vanguard Synthetic in 300 Weatherby Magnum caliber. The rifle has a barrel length of 24 "and I want to know if this length is sufficient to achieve the maximum performance gauge. I want to know if the bullet loses a lot of speed, power and scope. I also want to know what you think of the rifle and I have chosen gauge. Thank you , Oscar.