Depends on the store.
$50 - $250, depending on new or used, specific model, and overall condition.
Ruger 1022 .22cal rifle (semi-auto) Remington 572 Fieldmaster .22 (pump)
$150-$200, depending on exact model and condition.
Yes, Ruger made them
50-200
50-200 or so
The Winchester Magnum Rimfire is a larger round, and is capable of producing twice as much energy as the .22lr. I do believe that Ruger is making a rifle capable of handling the .22WMR, but a standard .22lr rifle is incapable of safely firing the .22WMR.
Ruger.
Ruger's web site has extensive sn data.
75-300
Depends on what caused the jam.