Hello! I went to wheelweight metal for bullets. That eliminated the feeding problem. I got the same cutting of the bullet tip by the edge of the breechblock and no suggestions changed that. Linotype bullets feed as fast as I can work the lever. It does not hurt to try the other suggestions and adjustments. Basically, you are completing the fine points that the factory should have done, but when you are finished, you will really grow to admire the little carbine. I don't have a rifle.
56/50 Iron
Hayward, Wisconsin