reloaded some shells today. tried experimenting with seating bullets just off the lands. I got a shell case made 4 slits in the neck and put a bullet in it and put into gun. checked with calipers and got 2.875 to the lands. tried reloads at 2.865 to get ten thousandths off lands but when I put the shells in the bolt closes but when I open bolt i can lift the bolt but have to whack the bolt with hand a time or two to get bolt to slide back. is my oal too long and bullet is grabbing the lands and keeping it the bolt from sliding back. thanks guys. the rifle is a 260. nosler book says oal is 2.800.