Another option that's closer to your budget is the Benjamin Discovery. You can get the rifle and pump combo under $400 if you shop around. While it's not a repeater and doesn't have a shrouded barrel like the Marauder, it is an easy to shoot PCP capable of good velocity in .22.

http://www.pyramydair.com/s/m/Benjamin_Discovery_Rifle_Pump/1534

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Ancient order of the 1895 Winchester

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