The same 150gr boattails I load in my .30-30 are the same ones you load for the .308Win and the .30-06. Look up a bullet manufacturer like Speer. You won't find a ".311" bullet listed. Just .30cal. Some do give bullet dimensions, most go by common caliber name.
10mm and .40S&W pistol shoot the same bullet.
>>>Nope. They are all .30. The 7.62 in the diameter of the bullet in mm. 7.62mm =.3".Nope. They are all .30. The 7.62 in the diameter of the bullet in mm. 7.62mm =.3".<<<
Listen carefully. The "7.62" Russian is not the same as the .30 caliber used in the 30-06, .308, 30/30, and .30 carbine.
>>>Look up a bullet manufacturer like Speer. You won't find a ".311" bullet listed.<<<
Actually, they are common. The following link is Hornady's list of Russian 7.62x54 bullets. The bullets are listed as .310 and .311 inches:
http://www.realguns.com/loads/762x54r.htm
It is okay to reload a .308 bullet into a Russian casing, but not the other way around. A Russian bullet will increase chamber pressure in a .308Win or a 30-06.
If you intend to reload, I would recommend you make a habit of NEVER, EVER making assumptions like you did with the Russian bullet diameter. Reloading with too large a bullet diameter is just as dangerous as improper case trimming or overloading powder.