Hello, working on a 7-08 remington 700 project. I'm wondering about the optimal barrel length for the 7-08. I'm somewhat new to customs, but from looking at other full length and beyond stuff (mag and custom long 30's) people favor the longer barrels. But,,,,with the short case of a 7-08 or other 308's, there seems to me that there has to be a max length where there is no longer a velocity gain, powder is burned up, and at some point there should be a length that would actually decrease velocity because of barrel drag?? I'm looking for some 7-08 experience, I'm looking for that balance between max velocity and portability,,,,,,,,,,,,,,,,,,,thoughts??? Would love to hear thoughts about powders and bullets if you have them as well (for some background, I'm talking about targets and deer sized game out to 500-600 yards, not long range for most but I'm also looking to get this out of a 8-10lb total weight rig any thought are appreciated!