For you guys that are using the 408 C-T brass i just wanted to pass on some info. The first run that Jamison made was too soft and they had lots of problems with primer pockets. They since have re worked the brass to a very strong case. OK... This is how to tell the difference between the two runs. The old batch on the head stamp says, (408 Chey-Tac...Jamison) dont use this! It is a one shot brass. The new brass has two (stars) stamped on the head separating the Jamison and 408 Chey-Tac. Grafs & Sons supplies is selling the "old" style brass, dont buy it! Or at least ask them to make sure the cases have the stars on the heads. I'm not bashing Grafs, two customers just sent me cases and they are no good for the 408 or its wildcats. It could be used in a 505 gibbs rifle, low pressure case.