mm is millemeters and i would guess that you're talking about the caliber of a gun. like 5.56mm gun or 5.56mm barrel.
At various times barrels of that length have been made.
If the barrel has 5.56 printed on it or you have verified with the manufacturer that ALL of their barrels are good for 5.56 ammunition.
"Best" is a very subjective measure. Barrels by any major barrel manufacturer or by Glock would not be a poor choice.
firstly it is spelled "THROW" secondly barrels
That depends what the barrels are of and how much the individual barrels weigh.
Exxon mobile Here are some large companies that do not import Middle Eastern oil: Sunoco.....................0 barrels Conoco(76)...............0 barrels Sinclair.....................0 barrels BP/Phillips.............. 0 barrels Hess.........................0 barrels ARC0........................0 barrels Maverick..................0 barrels Flying J....................0 barrels Valero.......................0 barrels Murphy Oil USA*.....0 barrels *Sold at WalMART > , gas is from South Arkansas and fully USA owned and produced.
250 barrels
453,942 barrels.
No, you do not have to show horses in barrels.
Yes, the barrels are rifled.
they got 36 barrels of gunpowder into the houses of parliament by a boat they put all the barrels on a boat.
1. Russia (9.5million barrels daily) 2. Saudi Arabia (8.3million barrels daily) 3. USA (5.4million barrels daily) 4. Iran (4million barrels daily) 5. China (3.8million barrels daily)