Brass was sized with sizing die about the width of a nickle above the shell holder--Shoulder never touched. Factory brass as evidenced both in my handloads and the factory loads of Graf's ammo loaded by hornady comes with a really short headspace. When resizing this brass discussed above, I will raise the die even further, trim to length, and see if it will chamber. As the dia is reduced there will be a growth in headspace measurement. I'm curious as to how long this chamber is to the neck. Once the brass reached the point where it won't chamber, then I will begin to lightly kiss the neck and work the shoulder back .002-.004 in. The factory length of headspace was not altered in loading and this was the first loading of this brass. I feel like hornady did the same . Chamber had residual Rem oil certainly present when the firing of the Graf's ammo took place, as they were fired 1st. in this series. Thanks for the tip but it just don't apply.

Last edited by loggerhead; 04/15/19.