To find the year that any Winchester gun was made, you just need to know which model it is and what the serial number is (the model number and serial number are stamped on the gun itself). . Then go to this website and it will tell you when it was made: http://oldguns.net/sn_php/winmods.htm
1965
If you have a model 70 winchester rifle?then it was made in 1964 with the serial number you provided.
Rifle chambered in one of the cartridges named Winchester Magnum- such as the .300 Winchester Magnum- or .300 Win mag for short.
Depending on condition 300-1500 USD.
I know how much it would be worth to me. $1500. wa_tarp@yahoo.com if you want to sell
None. the term "300 Weatherby Magnum" is not merely a brand, it IS the caliber of the cartridge (no matter who makes it) It does NOT interchange with the .300 Winchester Magnum cartridge.
The G makes the number come up as invalid. Without the G, it comes back with a manufacture date of 1971
7mm Magnum and 300 Winchester Magnum
150-300 dollars depending on overall condition and a good bore.
Your Winchester model 94 which was made in 1969 will bring between 175-300 dollars depending on overall condition,and a good bore.
There was no 300 Winchester Magnum cartridge in 1939. A 1939 Model 70 would be marked "300 Mag"...and it will be chambered for the 300 H&H Magnum cartridge. There was no other 30 Magnum cartridge in 1939 in the Model 70. The 300 Winchester magnum cartridge was introduced in 1963,...the last year the Pre'64 Model 70 was made. Your 1939 Model 70 may have had a later barrel swapped in to it. 300 Winchester and 300 Win Mag are the same cartridge.
$200-$300. depending on condition.