Barrel Length -short mags vs long mags
I'm considering either a 7mm or 300 magnum. I notice that the new short magnum calibers are offered primarily in 22-23" barrel lengths, while most of the traditional magnum calibers are still 26". Is there an inherent difference in the short mags that optimizes them for the shorter barrels? Would you lose a significant amount of velocity and/or accuracy with say a 300 Win Mag that had a 24" barrel?
I think 24" is the longest I am willing to pack around anymore on my high mountain elk, mule deer hunts. I would like to find an optimal balance of velocity, accuracy, and weight/size. I'm looking for a rifle that could reliably take game out to 6-700 yards, when I become up to the task, and still be tote-able in steep country.
Thanks for the input