Ok well I have a low numbered universal M1 Carbine, the problem is that it wont feed another round after 1 is fired. I have been shooting Pri Partizan rds, both soft point and FMJ. What happens is I fire a round and it either does not slide back far enough or does not slide back at all to feed another round. With the FMJs I have gotten a few stove pipes but other than that the failure to feed is the problem.