Bolt, semi or lever?
I'm going to wager a guess the majority will say a Marlin. For 'off hand shooting' they are cheap to purchase and have a following for good 'out-of-the-box' accuracy! I personally don't own a Marlin, I'd love an older model 60 in stainless!
I have Savage and CZ bolts and they are both very accurate (off the bench).