What is the difference between a .30-06 and a .308?
Is the .308 bullet the same width but just longer to have a more stable flight?
The .30-06 and .308 Winchester are basically similar, using the same diameter bullets and equal powder loadings, and the ballistics of the two rounds are almost identical. In fact, the .308 is a direct descendant of the .30-06, developed by U.S. military ordinance as a replacement fro the .30-06 during the development of the M-14 battle rifle and adopted as a common cartridge by the signatory countries of the NATO alliance, hence its' military designation 7,62x51 NATO.
The difference between the two is the dimensions and overall shape of the shell casings themselves. The .30-06 case is LONGER than the .308 and the case shoulder of the .30-06 is a more gradual taper than the .308.
In fact, in my years of reloading, I have MADE .308 cases from .30-06 by reforming them in my reloading press and .308 dies, then trimming them with a special reaming tool. Source(s): Personal knowledge as long time experienced ammunition reloader.
The .30-06 is a shorter cartridge than the .308. The .308 is the same as the current NATO 7.62mm round (which replaced the .30-06). The .30-06 is still favored amoung hunters tho.
The ballistics charts on these two rounds are wierd. The 30.06 moves faster at longer ranges and has more energy at longer ranges, but the .308 has a little better trajectory at extreme range. Seems counter intuitive. The .308 projectile must be aerodynamically a little more tapered and longer as you stated.
The diameter of the projectile is the same. The .308 is loaded to higher pressures than the 30-06. The 308 was designed shorter to work through shorter, lighter weight, actions.
The 30-06 is longer than the .308. The 308, performance wise, matches the 30-06 in ballistics with bullets weighing up to 165 grains. Above that, the 30-06 is better with the heavier bullets due to the powder capacity of the larger case.
they shoot the same bullet and perform the same until the bullet weight gets to about 180 grains after this the 30-06 takes the lead because the bullet has to "sit" in the case farther and since the 308 case is smaller the bullet takes the place of a larger percentage of the case so the powder to bullet ration is smaller
Let me begin by saying, if you are planning on buying a rifle in either round, you can't go wrong.
The 30-06 and the 308 are both 30 caliber weapons. This means that they both shoot bullets 0.308 inches in diameter.
Both rounds are/were rounds in military use. The 308 Win and the 7.62 Nato are pretty much one and the same and can be used interchangably (there is a slight difference, but before people jump on me, a 308 Win can be used in a 7.62 Nato weapon and vice versa....there is a difference of about 0.01 inches between a 7.62 Nato chamber and a 308 Win chamber).
The 308 Win is in current use in the military in various firearms, mostly machine guns. The 30-06 was used up through the Korean War in the Garands, some Machine guns, and the 1903 bolt action rifle.
There is a little difference in ballistics between the two. The 30-06 is about 100 to 200 fps faster than the 308 for most bullets. This translates to the 30-06 having a slightly flatter tragectory. However, the difference in flight path will only be an inch or two at 300 meters. Most people can't shoot accurate enough for that few inches to make a difference.
The 30-06 is the world standard in rifle cartridges. It is by far the most popular and one of the most versitile, but like I said, you really can't go wrong with either one.
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