Shot some today in my M1 Carbine.
11gr of 2400, small rifle primers, resized to .311di (cast at .313), Lars lube.
Function was good. Shells all in one place. 1" to 2" at 50yds. 4" to 5" at 100yds.
I was having problems with the mag. Second to the last round would eject the last round after firing. I kind of had to single load the last round.
I also tried 11.5gr of 2400. Same as with 11.0gr.
This bullet works great so far.