.22-250 Remington is a caliber and not a type of rifle. Several manufacturers have made rifles in this caliber. Without knowing the exact make, model, and condition of the rifle this question cannot be answered.
ABOUT $700
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
Having trouble identifying the model. In 1979 (date indicated by your sn), Browning produces the BBR bolt-action rifle, the B78 single-shot and the BAR semiautomatic rifle in 7mm Remington Magnum, but none of those had that 117 designation. What type of rifle do you have?
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.
Need a detailed description
100-1000 usd
50-5000 usd