In addition to the two differences I noted above, the older Pacifics do not have the hole in the platen at the last station that allows the finished shell to drop out the bottom. Some of the older Horandy's may not have that feature as well. I don't know when it was added (before or after Horndady bought Pacific).
If that unit doesn't have the shot and powder shut offs it will be a wooly bear to load .410s on. Been there, done that.....for a very short period of time.
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