When I started working up loads for my 243 I got a surprise because I was getting pressure signs at what should have been a nice mild starting load. Then I looked at some of Stimpies suggested loads, thanks Quick, and used his COL. It looked like the bullet was seated way deep. What I had done is just seated the bullets the way my die was set for my test loads, and this had undoubtedly cammed the bullets hard into the lands as the action closed. Hopefully I would have felt such a mistake as I closed the action on a bolt gun, but a gun with a hinge don't give you no "feel". Loading for these babies is kind of a whole new world.