Simmons Whitetail Classic is a pretty good deal @ about $100 if you can deal with 6.5 power being the lowest setting. 20x is great for tight target work.
130 5-star reviews can't be all wrong
http://www.midwayusa.com/viewproduct/?productnumber=746570
The Simmons Whitetail Classic Rifle Scope 6.5-20x 50mm is a MidwayUSA exclusive. This rifle scope offers a bright, clear image and is packed with features normally found on scopes costing three times as much.
Whitetail Classic Rifle Scope Features:
# 1/4 MOA windage and elevation adjustments
# Fully multi-coated camera-quality lenses
# Waterproof, fogproof, shockproof
# Lifetime factory warranty
Tube Diameter: 1"
Objective (front) Diameter: 63.5mm (2.50")
Ocular (rear) Diameter: 41.9mm (1.65")
Adjustable Objective: Yes
Adjustment Click Value: 1/4 minute of angle
Eye Relief: 2.8 to 3.7 inches
Field of View at 100 yards:
# 17.9' @ 6.5x
# 6.11' @ 20x
Lens Coating: Multi-coated lenses