Originally Posted by
FW Conch
A "True Ackley" chamber is normally thought of as one which can fire the 280Rem or the 280RemAI in the same chamber. If I were going to use 280RemAI Factory Ammo, then I would set the Head Space to that ammo. But then the question would be, what Dies would I use if I wanted to reload? But I don't use Factory Loads, I reload and Fire Form to the chamber. When reloading, with what ever means is used to set headspace, I can load a round, touching the lands, and Fire Form to the chamber. This "may" produce a "slight" wildcat but I can proceed from there "as long as I have dies that are comparable with the chamber I have fire formed to. I may or may not then be able to use factory loads? From the information listed above, It sounds like the tolerances are close enough to not make to much difference, for lack of a better way to put it? I think in this case a "Chamber Cast" would be a good thing, especially to determine if the Dies used would be compatable.
Luke45- Not trying to complicate or over think this ;-))... Please keep us informed of your progress!...... Jim