With a good rear bag, a decent bipod, and good fundamentals, you should be able to make accurate shots. I shoot threes (okay, big threes) shooting prone while using a Harris bipod, rear bag, and a 300 PRC (it has some recoil). If you are going for groups smaller than that, a front rest may be necessary. Even with a front rest, you still have to manage recoil.
Sinclair International makes a good front rest. I still shoot from a Hart that I bought many years ago. They don't wear out. If your weapon has noticeable recoil lightweight rests are not stable enough - look for cast iron or steel. An aluminum rest under a 13.5 pound rifle shooting a 6 mm cartridge is probably not going to be satisfactory. If you can find a used Pelican 1550 case, it will probably make a good case for your front rest - it works for me.
If you use a front rest or a rear bag, remove the sling studs. The stock rests on the bags, not the barrel. Use a front bag that fits your stock. When filling the bags, leave some room to squeeze - do not make the bags rock hard. Consider something like
this to put under the feet. When shooting a weapon with noticeable recoil, prone is easier on your back than shooting from a bench.