Resizing 6.5 Grendel

[Trashy]

I started with 21 once fired Hornady and 21 starline 6.5 Grendel  for my first shot at reloading.

Ran them thru my lee press with Hornady custom dies, had no problems. Used lee 6arc quick trim to trim to length and a Hornady deburring tool. 

Everything looked great till I tried them in my rifle. The Hornady Brass no problem , the starline won't chamber

Hornady sized to 1.47 Oal, 1.187 at shoulder and .265 at neck

Same die 6.5 sized to 1.47 Oal, 1.191 shoulder and .265 neck

What did I do wrong ?    Do I need different dies for resizing 6.5 Grendel ? Or?

There don't seem to be any adjustments on sizing or their quick trim die only once you get to seating 



Thanks for any help

hi Bass, the most likely culprit will be not enough shoulder bump on the star line brass. If you have a headspace comparative tool, measure the headspace of the hornady and the starline and compare the numbers.  If the starline measures longer adjust your sizing die down a little further bumping the shoulder a little more. Bump the shoulder just enough so that it chambers. Unfortunately you will need to dismantle all the starline rounds, bump the shoulder then reassemble the rounds. Hope this helps