I've never owned a 30-30 until this week. I found one made the same year I was and had to have it. I bought 6 different boxes of factory ammo to see if there was anything it liked before I bought a bunch of reloading gear. The target on the left is the first 3 rounds @ 100 after zeroing @ 50. Remington 150gr core locks. the target on the right is Federal 150 in the blue box. 3 shot group and 4th shot after moving the crosshairs. I didn't fire a 5th round.
I'm a pretty happy camper tonight, although having one shoot factory like that takes some of the load development fun out of it.