you have a magnum boltface, so the .473" caseheads won't work. This means anything from the 06' family on down is out. You can do a WSM, SAUM, RUM, etc since they don't have belts. or you could find someone to trade bolts who wants a magnum bolt,...but I wouldn't think that would be easy to find. A WSM or SAUM would allow all kinds of room to feed from the box, and still have long seated bullets.
You try to get closer to the target,..and I keep trying to get further away.