I have a 45/70 that shoots well, a .444 that does the same, then you get to my .35rem and it even does better. My 30/30 has only about 200rds shot thru it and it shoots not terrible but not good. Sometimes 3 to 4" groups with leverevolution, but better groups with straight round nose ammo. Now here is the question: How many rounds do I need to shoot thru the rifle to consider it broken-in (the barrel that is) and will it improve it. I like the 30/30 and would like to hunt with it but it needs to shoot better. Maybe a new barrel would help although the barrel is new. Any experience and help you can give me will be appreciated.