Need Help with Hornady Full Length Die

[grayfox]

Whether a brass case chambers or not is more often its length to the datum line, rather than OAL, although OAL can affect you too. You check datum length with the case comparator, SAAMI dimension for this is 1.190 - 0.007. The shoulder bumping up against the chamber is what has stopped a few of my cartridges from loading.
Factory loads typically size that even a couple thou below min so they will always chamber in all rifles.