25-80 USD
50-300 USD. Made by Savage.
See: http://www.gun-data.com/tour7.html this may help you.
0-225 USD depending on specifics
Neither Revelation nor Western Field made firearms. The first is a brand name retailed by Western Auto and the second by Montgomery Ward. The Revelation 220 is a Mossberg 800 and the 225 a Savage 340.
Best to ask a gunsmith for assistance.
100-400 or so
Try e-gunparts.com
how much is it worth and is it accurate.
try J C Higgens
Anything is possible with enough money and a good machinist.
I believe your rifle is a Savage Model 340, made under the Western Auto house brand of Revelation.
About $225 used.