Roughly .275 or .28 caliber. Take MM divided by 25.4 (mm/inch) and you get caliber in hundredths of an inch.
284
Of course not. .50 caliber weapons are.
The cartridge known as the 7mm-08 was derived from the .308 Win (7.62x51mm). The casing mouth is necked down from the original 7.62mm (.308") to 7mm (roughly .280").
The caliber designation of 7mm-08 is considered a short action.
30/06 is one
It's basically impossible to answer the question as you asked it. Good for what?
If 7mm Magnum, it trumps the others.
The 30-06 shoots a bullet which is 7.62 mm in diameter, so the 30-06 is "bigger" in that sense. Several different weights of bullet are available in either caliber, so that's an undetermined variable. There are several different 7mm cartridges (7mm Mauser, 7mm Magnum, 7mm H&H, 7mm-08), so you have to be more specific when comparing ballistics.
No because the barrel is made for that specific caliber and will not wear out the barrel.
9mm on front 7mm on back
probably 7mm or 8 mm
Both calibers have alot power but the 7mm is more powerful due to the fact that the bullets of the 7mm are in a higher grain than the .308. The 7mm also has a much higher recoil than the 308 and even the 30-06, both calibers have a high standard of performance but its no question the 7mm remington is more powerful