I have a Ruger .243 22" 1:9 twist I bedded the recoil lug and floated the barrel and have many many rounds down the tube. It will not hold a group off the b-pod but great off the bag.
I like 95gr Nosler blue tip, 41gr XMR4350, WLP, fire formed brass, .015" jump. The fouling shot is always out by an inch but predictable.
ts had an easy 1500 rds through it and I'll rebarrel it shortly I haven't decided what. Its an old flat bolt and I hate to change the originality but I'd sure like to get the first round in tighter. Ive just learned to compensate. Like I said predictable.