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The millimetre (SI symbol: mm) is a unit of length in the metric system equal to 10 −3 metres ( 1 / 1 000 m = 0.001 m). To help compare different orders of magnitude, this section lists lengths between 10 −3 m and 10 −2 m (1 mm and 1 cm). 1.0 mm – 1/1,000 of a meter; 1.0 mm – 0.03937 inches or 5/127 (exactly)
.308 in (7.8 mm) Neck diameter.336 in (8.5 mm) Shoulder diameter.492 in (12.5 mm) Base diameter.512 in (13.0 mm) Rim diameter.531 in (13.5 mm) Case length: 2.825 in (71.8 mm) Overall length: 3.562 in (90.5 mm) Rifling twist: 1-10: Primer type: Large rifle magnum: Maximum pressure: 65,000 psi (450 MPa) Ballistic performance
In engineering notation, this is written 40 × 10 6 m. In SI writing style, this may be written 40 Mm (40 megametres). An inch is defined as exactly 25.4 mm. Using scientific notation, this value can be uniformly expressed to any desired precision, from the nearest tenth of a millimeter 2.54 × 10 1 mm to the nearest nanometer 2.540 0000 × 10 ...
The .270 Weatherby Magnum was the first belted magnum based on the .300 H&H Magnum to be developed by Roy Weatherby in 1943. [2] The cartridge is short enough to function in standard-length long actions with a brass length of 2.549" or 64.74mm and an overall length of about 3.295".
SAAMI recommends a six groove barrel with a rate of twist of one revolution in 9 in (230 mm), a bore diameter of .256 in (6.5 mm) and a groove diameter of .264 in (6.7 mm) with each groove having a width of 0.090 in (2.3 mm). The recommended maximum pressure for the cartridge (piezo) is 64,000 psi (4,400 bar).
Portrait of Anders Ångström [15]. In 1868, Swedish physicist Anders Jonas Ångström created a chart of the spectrum of sunlight, in which he expressed the wavelengths of electromagnetic radiation in the electromagnetic spectrum in multiples of one ten-millionth of a millimetre (or 10 −7 mm.) [16] [17] Ångström's chart and table of wavelengths in the solar spectrum became widely used in ...
Unit Type Notes Cable length: Length: Fathom: Length: Knot: Speed: League: Length: Nautical mile: Length: Rhumb: Angle: The angle between two successive points of the thirty-two point compass (11 degrees 15 minutes) (rare) [1]
57 mm (2.2 in) 57 mm kan M/89B (Finspång 57 mm fast shooting naval gun L/55 model 1889) Sweden-Norway: 1890s - Modern 57 mm (2.2 in) 57 mm kan M/92 (Maxim-Nordenfelt 57 mm fast shooting naval gun L/48 model 1892) Sweden-Norway: 1890s - Cold War 57 mm (2.2 in) 57 mm kan M/95 (Finspång 57 mm naval gun L/26 model 1895) Sweden-Norway