Hey guys, my buddy just bought this rifle today & asked me some questions but I had no answers & we rearched the web & found nothing. This is a brand new Savage rifle out of the box today, there is some kind of bolt spacer that is on bolt & after a few operations becomes loose. He can take it off by hand & there's a set screw that's built into it. Nothing in owner's manual obviously about what it's for, & if it's even needed.....just wondering if the group has any intel??........