Pa_farmboy

The faster twist rate can spin the lighter faster loads so fast that centrifugal force will literally tear the bullet apart before it reaches the target. You can counter this with heavier jackets and fmj but that doesn't work well for hunting. The other option is heavier bullets or slowing your loads down. A hot 5.56 load can spin the bullet in excess of 40,000 rpm on a 1/9 twist.

The first run of 308 savage hog hunters have a 20 inch medium profile barrel with a 1/9 twist rate. It's also threaded for a suppressor. The 1/9 is nice for stabilizing heavy rounds used to drop hogs and really good for stabilizing subsonic loads (even heavy subsonic loads ). I haven't experimented to much with hand loads (other than subsonic loads) but so far heavier loads are what she likes. I've stayed under 200gr but it stabilizes and holds good groups up to those weights and keeps tight with 165-170 gr subsonic loads. So if your wondering why a 1/9 twist would be beneficial the answer is heavy loads for aggressive game such as hogs and heavier suppressed loads would be my answer. Ive focused on my rem 700 since I've had the hog hunter but I'm currently making my changes to her and I'm about to get to know her much better. I'll have better info after but I'm honestly interested in seeing what she is capable of.