I bought a Remington AAC 16.5" .308 for a new handy suppressor ready deer rifle. Turns out the rifle is a complet TURD and I will have to rebarrel it. My question is should I go with 6.5 Creedmore for a 600yd White tail/Mule deer set up? I want to keep the barrel length below 18". I know the .308 is performer in the killing department first hand. but how does the 6.5 stack up against it in the shorter barrel length?