Showed up today. It had an additional metal piece attached to it and it was setup for 223 sized bullets. It APPEARS that this was part of a conversion to use a Dillon powder measure on a hornady press. The spring pushed against a hornady powder expander, connected to another spring that sat on top of the hornady case expander for an empty 223 case. Either way I'm happy because the measure, die, 30 call match bullets AND sp type bullets AND 600 large rifle primers were traded for 2000 large pistol primers.