I have a .222, .22-250, .243 Carbine, two .30-30s, a .308, and a .44 Mag. They are all quite accurate. The deuces consistently shoot sub-MOA and some groups are astounding. The .30-30 and .44 Mag are the most accurate rifles you can find in those calibers. One of my .30-30s averaged a bit less than one MOA with Hornady's new LEVERevolution factory ammo. They respond to good bedding and I have Acra-Glassed a number of mine. It is easy to do with this action. Problems with rear locking lugs are mythical. Metal does not compress. I know folks who have built Hunter Bench Rest guns on the 788 action. Some of the earlier stocks were walnut (I have a couple) and all are well designed. The bolt throw is short, lock time very fast, and the trigger fairly crisp. Did I mention that the action is very strong?
P.S. $400 is an astoundingly low price for a .44 Magnum.