Approx values for guns recently stolen 1 Browning A-bolt 7-mm Mag w good 4x12 scope 1995 model w less than a box of shells fired?

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. For insurance purposes, most companies accept the Blue Book of Gun Values to appraise your loss. Recommend getting a Blue Book and look up the A bolt based on percentage of finish to determine value. Sometimes insurance companies will look at replacement value which is something you may be able to find locally.