FTW, I guess it's personal thing but like SD pointed out by using 30-30 brass you can set a false shoulder for head spacing, plus 30-30 brass costs about $ 20.00/100 less that 7-30 AND I have three flavors of brass, Rem. Rem (N) and W/W and I want to do a little "piddleing" to see which one holds up the best, not that a reason to go to the range is needed, but anything to help my fellow re loaders