I just had the head space of my buddies 280 AI checked out by a local gunsmith and he informed me that it was loose, but not excessive. When he used a standard 280 remington No-Go guage the bolt would close, but it took a little extra effort. What is the normal/ original process of checking the headspace in a 280 AI? I thought you were supposed to use the go guage as the no go guage on the 280 AI. FYI, the reason we had the headspace rechecked was because of a case seperation during our last deer hunt, the other was is when we fire form the cases in this rifle, we have to seat the bullets into the lands; otherwise, we get some case distortion just above the case head. The rifle is a Remington 700 action with a Krieger barrel. Please let me know your thoughts.