Blue Book of Gun Values is a good place to start.
Impossible to do with just the serial number.
Need a detailed description
The W818878 is not recognized. 70B30095 is a number for a Browning Lever action .22 rifle. Use the link to find value
Can't value with just the sn.
There is no such thing as a Browning semiautomatic M70 rifle. The Model 70 bolt-action rifle was produced by Winchester, while Browning produced a very different semiautomatic rifle called the BAR. Which is it?
There is no way of knowing without you providing the Model of Browning rifle that you own,its caliber,and a good description of your rifles overall condition.
100-1000 or more depending on specifics
100-1000 usd
Need a detailed description
100-1000 usd
50-1000 usd
700-1000