I voted charger before I read your intended use. The charger is a blast but I wouldn't call it a plinker. Mine goes to the range every time I do but that's off a bench. It now wears a Kidd barrel and the trigger has been upgraded. You can cover 5 shots with a quarter at 50yds.
For your intended use I would go with either the Mark III or 22/45, whichever one fits your hand better. I'd also get a bull barrel. Makes a good plinker & for target practice.