You can hit at 1000 with a 308…. just need the skills and a decent gun…. but in shft and hunting… that is a 10 percent time if that like mentioned under 600 un urban under 300 yard sight lines unless you are one damn scary loop hole shooter through a Secondary structure.
I recently retired all the 5.56 and just went back to 308. Rifle weights now within 6 oz without cartridges and more ammo weight but way more stopping. Never had to use full auto from a non fixed position/hard point rifle. So in single shot there is no comparison in my opinion. By the time I have to scrounge for ammo and mags there will be rifles aswell.
It’s the jack of all trades master of none but it’s proven reliable. M1a skeletonized with folding stock metal mags and aluminum frame with a elcan optic and a 16 inch barrel. It’s almost as tough as AK but with way better accuracy. It’s my go to choice for my region and weather.