I am in the process of building a 243 ai . My barrel is a Shilen with a .270 neck so I will have to turn my necks. I have a couple hundred 243 brass so I turned a couplenecks for practice .
I notice some pictures on the web of 243 ai formed brass the the neck looks a little shorter than a regular 243. I was wondering should I neck turn my brass all the way to the shoulder before
I fire form my brass.