Yea I say go with the LPVO... I have a 16" 308 and it's main use is to carry through brush. Using a 308 as a CQ rig is overkill imo. FMJ is gonna overpenetrate like a mofo. Like, through walls, kitchen cabinets, to the outside of the place and then who knows where. At 16" length, a 10.5" 556...