I fairly new to PR, Im using a 700 20" barrel with a 10 to 1 twist in .308W. Currently I'm using 168 A-Max with Winchester brass and Varget powder. My rifle seems to like a 2.800 OAL and 45.2 gr of powder. Most of my shooting is done at 100-200m but I want to try some 600-1000m this summer. With my short barrel and 10-1 twist would a heavier bullet like a 178 A-Max be more ideal? I have been reading that the 208 A-Max requires to much powder to get to a good velocity to be ideal in 308W. I would like to stay with the varget powdered as I have 5 pounds of it and it seems to by readily availible locally. Thanks