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.
I have had personal experience with both cartridges but I have noted that my 7mm magnum barrels heat up quite quickly which can result in a change in accuracy. In terms of ballistics, the 7mm magnum outclasses the 30-06 by a long stretch. Both cartidges are excellent and an opinion would be irrelevant. The choice is soley up to you as to what you need.
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
That depends on the type of bullet, the initial velocity, and the angle at which it is fired. A ballistics calculator is the best way to find the answer.
20x110mm autocannon round.
2.5 cm and 7 mm
cm is bigger than mm, so yo're going to have a fraction. 7mm=0.7cm therefore, there is 0.7cm in a mm
Do you mean the length of the cartridge or the diameter of the projectile?
The 30-06 ( say thirty ought six) fires a bullet that is 7.62 mm in diameter. The 7mm fires a bullet this is, well...... 7mm. 30-06 has a bigger bullet. The size of the GUN can- and does- vary. BTW- catridges such as the 7mm MAGNUM will have greater energy than a 30-06. So- what is your definition of bigger?
no, the 7mm is .284 bore, the .338 is, of course, .338
"Better" is a subjective term. Without more information, neither is "better"
The 7mm cartridge is fine for deer, but the keep the bullet grain down using a 150grain which is better for deer.
Basically the case is all. Same caliber bullet, but the case is shorter in the ultra mag. Its basically just a smaller round, bigger punch.