I would get a scope that doesn't require a coin to adjust the turrets. The APV is in fact a nice scope, but the APT (which is the APV with target turrets) is a better choice if you're going with Mueller. I think the APT is $20 more than the APV, but still well under $200.
Then there's the new Nikon P22 with a BDC reticle, which would be almost perfect for silhouette competition. The only problem I have with that particular scope is that it's weak on the power side, being just 2-7x32. Alternatively, you could select the Nikon Prostaff 3-9x40 with BDC reticle. Both of these scopes also feature return-to-zero turrets, which the Mueller scopes lack. Again, both of theses scopes come in well below $200.