User blog comment:NecrusIV/Average age of a Space Marine/@comment-1583177-20120817203428/@comment-4608429-20120817224811

Chaos Marines live in the warp, so don't obay by the normal laws of time, in which their lives are mesured. Besides the Chaos Space Marines which have lived to that age are Chaos Lords who have neumerous mutations, one of which is probably long lives.

Also as I have stated below, The Space Marine Codex dosen't seem to have anyone above the age of 400, which indicates thats the max for age of a normal Space Marine

One bit of trivia about the Space Wolves fluf, Logan was trained by Ulrik, but Ulrik only became a Wolf Prist after the First War of Armaggendon, which Logan comanded. O_O