The current issue of the Blue Book Of Gun Values lists a new-in-box M-70 Winchester in .225 at $1,200. Winchester made only a few rifles in .225 caliber, hence the reason they have a collector's of upwards of twice as much as other post '64 M-70s in standard calibers. The Blue Book tends to to be rather conservative in their evaluations, with guns typically actually selling for more than listing price. If you consider selling your rifle don't be shy about asking $1,500.