Fine weapons
1972
I believe it was from 1962 onward.
100-1000 USD depending on specifics
50-550 usd
It should be marked on the barrel. There are other 7mm rounds besides the 7mm Mag.
Sometime in the 80s. You will have to call Browning to narrow it down further.
100-1000 and up depending on specifics
Only 7mm magnum ammo made by a reputable ammunition maker provided the rifle is in working order.
One is longer, one is shorter.
Depends which 7mm your talking about. The only 7mm I know of that has a larger case capacity than the 300 wby mag is the 7mm Remington ultra mag or 7mm rum
DO NOT DO THIS!!!! The OAL on the 7mm Mag is 2.5 inches and the 7mm Weatherby is 2.55 inches. SInce they headspace on the belt, and due to the freebore in the Weatherby, the 7mm Mag may chamber in the Weatherby. SAAMI lists the 7mm Mag/7mm Weatherby as an unsafe combination one will probably chamber in the other. DO NOT SHOOT UNLESS YOU ARE SURE YOU HAVE THE RIGHT AMMUNITION!!!!
350-650 dollars,depending on overall condition and a good bore.