0-multiple thousands depending on exact configuration, age, condition, accessories, box, manual, papers, etc..
Browning does not make a M70 semi auto 7mm nag
Need to know if its a bolt or semi-auto.
100-550 usd
Need to know if it's a bolt action or a semi-auto.
Fine weapons
Depends on if it is a bolt action or semi-auto. Depends on what grade it is. Depends on how old it is. Range from 300-5000 USD.
Made in both Bolt and Semi-Auto versions
$1,200-$1,400, depending on grade and condition.
100-10000 USD depending on specifics
The BAR Grade 1 Magnum is worth $600-800, depending on condition. Other grades of the same rifle sell for more (different finish, engraving) Excellent rifles.
Model 700 made by Browning is unknown. Please check it again. Value is too difficult to be accurate without seeing the gun. Condition which includes the amount of original finish and original configuration will determine value. Recommend taking it to a gun shop for appraisal.
0, because what you describe doesn't exist.