Whether you need a 5.56 or a 308 depends what you intend to shoot. A .308 is intended for larger game like deer and elk.
Winchester model 100 (rifle) in 100% shape is worth $550.00 in the 308 caliber. Winchester model 100 (carbine) in 100% shape is worth $795.00 in 308 caliber. If you find a model 100 in the 284 caliber consider yourself lucky and buy it, dinosaur bones are easier to find.
30-06 because it's a bigger round than the .308 although it might travel slow it has greater impact on the target
Yes, 308 = 7.62. But the 51 part is variable. The first number is the outer diameter of the bullet. This has to be exactly correct to fit the barrel of the gun. The second number, 51, can be different, and may still work.
3006/1000
Yes. Significantly.
it is 3006 cal.
I'm not quite sure about the 3006, but I know that the longest recorded kill shot with a .308 was at about one and a half miles, possibly more.
.308
100-300
it might be for the Krag rifle, cal. 30/40..... not 30/06
It uses a 30 caliber or .308 inch diamiter projectile. .308
Negative, 308 is a 30 caliber bullet and 30 doesn't fit into 25.
a "308" measures .308 inches while most 30 caliber ammo measures .312 inches. Strange as it may seem both are classifies as 30 caliber ammo.
30 caliber = .308 of an inch = 7.62mm
.308. which is 7.62
308 calibre