Quote Originally Posted by kennyc View Post
not really, the .243 chamber needs to fit a whole range of bullet lengths, and weights, the 58grn is surely at the shorter end of the scale, does it have enough length to leave the generally accepted bore diametre neck insertion, while touching the lands ? I suspect not, but am happy to be shown wrong.
You could be right? but this was the way I used in my rifle to find out the best seating depth I cant remember what is was