BSA,
That thought came to my mind too that this may be a chamber problem. But the gunsmith stated he did check the headspace. Not sure how I can check out the headspace unless I send it out.
So when you get new brass...they should function without resizing the brass right? I have a rifle for my son and its a 223Rem I can check with this new brass. This is a known shooter but its been a long while since I shot it. I will look into this tomorrow and get back with whether the new brass will fit in this chamber.
