I shot my first rounds out of the LEO / 50 round box last week--and it was as Mike reported: about 30 fps slower, with bigger ES/SDs. The group was bigger too, but that could have been me.
I was so surprised I shot it again. Same results. It was not enough to worry about at SD distances, but it sure surprised me. The various times I had bought the retail packs of 20 last year there was no inconsistency like this.
I still don't know what to make of this, really--but my opinion of Speer has sagged slightly.
Jim H.