Anyone loaded a 200g .30 projectile for .308 shooting? I was trying to work up a load with a heavy bullet for subsonic shooting. I have Sierra 200g projectiles that I mocked up a load for with an OL 0f 2.700" and it does not want to chamber in my Rem 700. Is this a bullet seating depth issue? Any concerns seating the bullet deeper with a light charge? Any input would be appreciated.