The Winchester Model 70 was produced in a variety of chamberings, so it would be difficult to state the effective range from the model of the rifle alone. It is also unclear whether you are asking about the "effective" range, or the maximum distance a bullet could travel, allowing for, perhaps, a couple of ricochets. In the past, a common chambering was in 30-06. That cartridge has won many competitions at what would be called long range in most people's vocabulary: 500 to 1,000 yards. In my guess, in almost any chambering, the model 70 could be counted on to reach out as far as the average hunter ought to be taking shots at game. You really need to consult some ballistics tables to see the effective range for the particular bullet and loading you are using. The "effective range" would be the longest distance an experienced shooter could be able to get consistant hits, or the distance at which the bullet would retain enough of its energy and velocity to produce clean kills. If you are asking for the maximum distance a bullet might travel, there are a number of factors to consider. For center-fire cartridges, it would be advisable to consider them dangerous within 2-3 miles. Always be aware of possible dangers downrange if you are not absolutely sure where your bullet is going to stop. If you have one of the older model 70s, you have a very popular rifle which will likely appreciate in value.
A Winchester Model 70 is a rifle.
Your winchester model 70 was made by winchester in 1965.
your winchester model 70 was made by winchester in 1972.
your Winchester model 70 was produced in 1966.
No
Your winchester model 70 rifle was made by winchester in 1975.
your winchester model 70 was made by winchester in 1972.
your Winchester model 70 was made in 1966.
your Winchester model 70 was made in 1991.
Your Winchester model 70 was produced in 1949.
your Winchester model 70 was produced in 1972.
your Winchester model 70 was made in 1991.