RE: .22 LR---------Marlin Model 60 or Mossberg 720 Plinkster?
As Paul said, it's still not clear as you wrote it.
Regardless, forget the Plinkster. So between a Marlin 60 or 70 and a Ruger 10/22, go with the 10/22. It's fine for all you'll need it for and it has a HUGE availability for upgrading ever part on it as you wish. I have both a Marlin and many Ruger 10/22's. All shoot quite well with the upgraded Ruger's shooting mch better.
Maybe clarify hat you are wanting this for more.