Blue Book of Gun Values is a good place to start.
Vaue of used guns depends upon several factors. Condition, model, and point of sale. Go to one of the used gun sits like gunbroker.com and check similar items.
75-575 usd
100-600 usd
50-500 usd
50-550 usd
50-500 usd
Basically impossible to value with just the serial number.
You will have to call Browning with the sn to find out.
A billion dollars
100-1000 depending on specifics
50-500 usd
r Requires appraisal
50-500 usd