Remington 700's are center fire rifles. Remington does make a very good 12 guage shot gun called the 870 (pump) and the 1100 (auto)- those are the popular ones i have both
Tough question, the Remington model 550 is a .22 rifle not a 12 gauge shotgun.
Take it to a gunsmith.
$300.00
Depends on which version and condition. An average price would be $250 or so. Some models are over $700.
Visit the Remington web site.
sawed-off double barreled 12 gauge Remington shotgun.
2012 remington express max
They didn't make them in 1942
$300.00
400 dollars
The Remington 90-t is a 12 gauge, single shot, break open, trap shotgun
The manual is downloadable from Remington's website.