My current rifle is a completely stock Remington 700 ADL in .270 Win. with the only added equipment being a DNZ one piece scope mount and 3-10x50mm Vortex Diamondback scope. Currently the rifle shoots 1.25-1.5" groups at 100 yards. I have started hunting deer on 500 acres of open wheat fields in San Saba, TX with most shots ranging from 150-600 yards. I know practice and range time will be of greatest importance, but I am wondering if the rifle is capable of accurate shots at 450+ yards on deer to pig sized game shooting if it shoots 1.25-1.5" groups at 100 yards?