Reloading Issues

[aknott1994]

I ran a couple cases through my 6.5 Grendel die and then necked them back down with no change in results as well. I did find out that the Hornady 105 bthp touch the lands at 2.250 using the Hornady tool. Could it be the dies that I am using? It's an ATI Omni gas gun and I am using the Lee Pacesetter die set. I use these dies for other cartridges but heard 6 ARC can be picky

Where are you located? Sounding more like yes, your dies may be the issue. If you would like to mail me a fired case & a resized case Id measure the shoulder datum point on both to verify difference. 

Am I reading to much into this? Were these factory rounds that were fired in your rifle, then resized? Meaning factory ammo chambers fine? Have you tried chambering a resized case only that has not been reloaded?

Yes, these were factory rounds that were fired in my rifle, none of the 10 cases I tried would chamber but unfired factory rounds and brass will. I am going to order the RCBS die set tomorrow or next Friday to test some different dies