The 527 is a light, compact rifle. You don't want to screw up its handling with a 13oz 3-9x40.
From what you said, you want to hunt at 200 yards and less. 4x is plenty for that, and if your talking 100-150 yards for most shots, you can do with even less magnification.
On the HEAVY side look at something like the Burris 2-7x26 : its a bit chunky for a compact rifle, at 11oz.
Other alternatives are one of the many 20mm objective fixed 4x units. these weight about 8oz, and will preserve the handling of the rifle.
Also worth looking into is the Leupold Ultralight. This is a 2.5x fixed power scope, weighting a scant 6oz. This unit will handle almost like a naked rifle. The magnification is pretty low, but its enough to shoot out to 200 (about like shooting 50 yards with Irons).