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Pencils with sub-millimeter leads can usually hold multiple leads at the same time, reducing the frequency of refills. One exception was the Pentel 350 E, possibly Pentel's first mechanical pencil, [14] which could only hold a single stick of 0.5 mm lead. Refill leads can be bought in small tubes and inserted into the barrel as needed.
The M1 ammo crate held a total of 1,000 belted or linked rounds packed in 4 M1 ammo boxes and the later M1A1 ammo crate held a total of 1,000 belted or 1,100 linked rounds packed in M1A1 ammo boxes. There were two .50 M2 ammo boxes to a crate (for a total of 220 belted or 210 linked rounds) with a volume of 0.93 cubic feet.
An overview of 7mm caliber cartridges, their history, and uses in firearms.
The projectile had a length of 21.6 mm (0.85 in). [34] It had an unmarked hollow nose with a depth of 7.6 mm (0.30 in) and a 0.8 mm (0.031 in) opening. [34] The SS192 was classified by the ATF as not armor-piercing, and in testing by FNH USA it did not penetrate a Level IIIA vest when fired from the Five-seven. [35] SB193 subsonic
The case is of brass; the heeled bullet is of a hard lead alloy, fully jacketed and coated externally with a wax lubricant. Originally it was loaded with 0.7 grams (11 gr) of black powder . Similar revolver cartridges were used in the late 19th century military revolvers adopted by the armies of Belgium, Luxembourg, Sweden, Norway, and Serbia.