OR know somebody that has one. Matt
^^^^^^^^^^
Even better!!!!
I've got a Dasher and a BRX barrel....and have used both the jam/shoot and the false shoulder method for each.
I found the length to be most consistent with the jam/shoot method.
I also had DJ's Brass hydroform 150 pieces of 6BRX brass for me, and though the other two methods worked fine, there's no doubt in my mind that the hydroform method produced more consistent shoulders and length.
YMMV.
George