The 2 letters NR in the middle of your serial number indicate that your Browning model BLR rifle was produced in the year 1997
1992
1971
Call Browning with the serial number.
2001
Check on line auctions
part of the sn
500-1000
1992
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.
Go to the Browning website, look under Customer Service. You will need the serial number, not a patent number.
500-700 usd