YES. Barnes, Nosler and a host of others make 200 and 220 grain bullets for use in reloading the .308 Win. However the largest factory load available (that I have found) is Lapua 185grain mega and naturalis. 180grain is widely available though (Federal, Remington etc.) and will happily take everything in North America, if you put the bullet in the right place. You'll be pushing it though with the brown and Polar bears.
The .243 Win is a great, it shoots 80 to 100 grain bullets, the 7mm-08 Rem is also very good it shoots 120 to 140 grain bullets. The .243 recoil is very lite te 7mm-08 is mild with 120 grain bullets. The 243 is a great deer round.
It depends there are many different .308 guns.
The .50 caliber is larger in diameter than the .308. If you are referring to the bullets for the .50 BMG and the .308 Winchester, the .50 is MUCH heavier, and much longer than the .308.
No.
No, a 303 is a rimmed cartridge, the 308 is rimless.
88 + 220 = 308
The Savage .308 rifle can typically accommodate a range of bullet grains. It is important to check the specific firearm's manual or consult with a knowledgeable gunsmith to determine the optimal bullet weight for your rifle based on factors such as barrel twist rate and intended use. Generally, bullet weights between 150 and 180 grains are commonly used in a .308 rifle.
a round 28-35 dallors
A 150 grain bullet shot from a 308 will start dropping the fraction of a second it leaves the barrel.
A .325 WSM should be your smallest, or .308 with AP tip. The Ideal bullet would be a .220 grain ACT Winchester .338. Or a .338 Lapua Magnum
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
No, they are not relatively prime.