The Remington 770, Ruger American, Savage Axis and Mossberg rifles are all exactly the same. They all use the same shortcuts in manufacturing to produce a budget rifle at the lowest cost possible. For the casual hunter that wants to zero his rifle and make a box of ammo last for several hunting seasons any of them will last a lifetime and all have at least average to above average accuracy potential.
If you are a shooting enthusiast, none will make you happy. None are designed for long term hard use and repairs and replacment parts are going to quickly add up to more than the gun is worth. They should all be considered disposable guns. Use them until they wear out and throw them away. For most shooters that will still be their lifetime.
If you want a little better quality, and a rifle that will last several lifetimes of hard use move up to the Savage 10, 110 series, the Weatherby Vanguard, Howa, Remington 700 ADL, Winchester Super Shadow, Marlin XS-7, or look on the used gun racks.
The money you save on any of the disposable rifles will only pay for 3-4 boxes of quality ammo compared to costs of the better rifles. If you shoot much at all that is only 1-2 trips to the range.