800
Tough question, the Remington model 550 is a .22 rifle not a 12 gauge shotgun.
30p
100-1000 depending on specifics
300 or so
Model 58 is an automatic not a bolt action
$500 and up, depending on condition
probably around 350.00.
50-1000 USD or more depending on specifics
New in the box - $500-600.
100-300 USD
About 275 in good condition
Ball park, mine is a Model 32 TC, and it was apprasied at $3200.00