To get a downloadable replacement manual for a Remington 742, go to Remington.com, click the Support tab and select owner's manuals. On the following page, Model 742 is listed under the Rifles section. Click on the link to download a PDF copy of the owner's manual.
Remington Arms hosts owner's manuals for all its rifles, shotguns, pistols and air rifles on its website, and it also provides copies of obsolete owner's manuals upon request. The Support tab gives firearms owners options for getting online help and information on parts, and users can also arrange repairs complete with online tracking. New owners can register their firearms here as well and contact the company concerning repairs that are under company warranty.