Meh, early Savage 223 F/TR (7 twist) with a T-36 Weaver off a Harris shot everything put through it well, from 50gr Zombie-Max to 80gr Berger VLDs. The Bergers were shot at the 1000 yard line and good for 90-92% 60 round matches while I was starting my wind reading adventure.
I've had a pile 55gr Win fmj bullets for almost 30 years that never shot well though anything, so they only got loaded for function type drills, almost gone, finally.
Also have a couple of 5.56 RPRs that do just fine, also 7 twist.