You shouldn' t have any problems with seating depth and the magazine with a 180 gr bullet with your .308. For a hunting rifle, seat the bullets to what the manual says to start then you can start moving it out. I recommend seating far enough out to improve accuracy but still ensure reliabe cycling of the action. Your probably thinking about trying to get close to the lands, well you' ll never get there on some guns, but others you can depends on the throat. Once you find the sweet spot for the bullet / powder selection as long as you and the optics do their job you be inside 1-2 inches and that' s plenty good for hunting, then you get to try to make it better.