You did not provide the sn, so the question can't be answered.
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?
1965.
AFAIK, Browning didn't make any rifles in that caliber.
Made in 1969. Model depends on the features.
Rifle or pistol?
1914-1955. Browning does not have sn's available.
Since you did not provide the serial number, you can check the Browning web site (has serial number information on it). Also, the Blue Book of Gun Values has serial number information on Browning's.
No
Could your serial number read 8E instead of B?If so your rifle was made in the year 1968.Browning did not use the prefix of the letter B ahead of its serial numbers for any rifles in 22 caliber.
50-400 usd
Impossible to answer. You have not proivded anything besides the serial number. Browning has made tens of thousands of firearms. Is it a revolver, pistol, shotgun or rifle? What caliber or gague? Features? Finish?
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?