No they are not. 7.62mm = .300
308...A 7.62mm = .300
The .308 Winchester bullet is typically larger in diameter than the .270 Winchester bullet. The .308 has a bullet diameter of .308 inches, while the .270 has a diameter of .277 inches. However, the .308 bullet generally has a heavier weight and greater case capacity, which can affect overall performance and use. Both cartridges are popular for different types of hunting and shooting applications.
None... it is the same sized bullet (.308 diameter). You have to choose the selection of bullet when reloading 30-30 ammo for the type of bullet. A pointed bullet in a tubular magazine can present a problem when the rifle recoils. The ammo is not interchangable, you must shoot the ammo that the rifle was chambered for.
Negative, 308 is a 30 caliber bullet and 30 doesn't fit into 25.
2m
Sorry, you need to specify WHICH .308 bullet and at what distance. As distance increases, the RATE of drop also increases.
No, it does not.
A 150 grain bullet shot from a 308 will start dropping the fraction of a second it leaves the barrel.
The . 300 Winchester Magnum is a larger cartridge. They both use the same diameter bullet.
If you are asking about the the cartridge length,then the 300 win mag.is longer than the .308win.caliber.If you are asking about bullet diameter then both cartridges are the same .308 bullet diameter.If you are asking about muzzle energy(hence power) then the 300 win mag.is considerably more powerful than the .308 winchester cartridge.
Yes- it is called a SABOT ( pronounced say-bow). It permits a .22 caliber bullet (not cartridge, BULLET) to be loaded into a .308 cartridge casing.
About 3,400 yards.