I have installed the RCBS .223/5.56 AR series small base sizing die(#11107) into my Hornady LNL AP w/ LNL bushing. The problem I am having is just as the base of the die contacts the shell plate it is completely sunken into the bushing to the point that the set screw in the lock ring is actually tightening against the turned down portion of the die body below the knurling.
Even at this setting AND making the slightest contact with the shell plate it comes up short on headspace by .010". I have been over the SAMMI specs and checked measurement gear(which is slightly off as compared to a known chamber). Measurements aside I am sizing via the stripped bolt test on match chamber.
If I install the same die in my LNL Classic single stage and adjust it for slight cam-over it sizes right on with no problems. The die is also higher in its bushing to achieve this dimension.
Has anyone else encountered this? I size/deprime as a seperate operation but I would really like to be able to utilize the progressive/case feeder for this operation. I have also had this issue with resizing .308 fired in my M1A.
Even at this setting AND making the slightest contact with the shell plate it comes up short on headspace by .010". I have been over the SAMMI specs and checked measurement gear(which is slightly off as compared to a known chamber). Measurements aside I am sizing via the stripped bolt test on match chamber.
If I install the same die in my LNL Classic single stage and adjust it for slight cam-over it sizes right on with no problems. The die is also higher in its bushing to achieve this dimension.
Has anyone else encountered this? I size/deprime as a seperate operation but I would really like to be able to utilize the progressive/case feeder for this operation. I have also had this issue with resizing .308 fired in my M1A.