Welcome to the Remington Lottery!!!
Some rifles from the Factory will easily shoot sub MOA, some of them will struggle to produce a consistent 1-2 MOA.
Per above, run down the list on the rifle and check everything like the torque on all screws. Also make sure that your stock is completely free floated and that it is not flexing under a load. I have seen a number of factory rifles where the stock is making contact with the barrel at some point.
Also per above, you are going to have to run through a number of different loads to see what the rifle likes, and find the load that will produce the best results. I have been surprised by the number of recent Remington rifles that I have seen recently that do not shoot real well with the Federal Gold Medal Match 168 SMK. That is usually a good round to evaluate any rifle with, but for some reason, they just do not like it. In those cases we have had the best results with some heavies like the Federal 175 and the Hornady 178.
If you can shoot 1 MOA with another rifle, and this one will not do any better no matter what you try, send it back! As much as I hate to say it, I have had to tell someone to send back 2 Rem 700s in the last 6 months, because they simply would not shoot consistently or accurately. One of them had a bad stock, the other had a bad barrel.
Best of Luck,
M Richardson