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The weapon overall has an extremely compact profile—it is the most compact fixed-stock submachine gun to be made. [10] The standard version of the weapon has an overall length of 500 mm (20 in), a height of 210 mm (8.3 in), and a width of 55 mm (2.2 in). [7] The P90 is fully ambidextrous
To qualify as a precision guided firearm, the system must: Be a complete firing system – rifle, ammunition and networked tracking scope; Persistently track the target, automatically compute a multi-variable firing solution, and ensure precise engagement when target and firing solution are optimally aligned
An example of this combination was the German battleship Bismarck, which carried a main battery of eight 380 mm (15 in) guns, a secondary battery of twelve 150 mm (5.9 in) guns for defense against destroyers and torpedo boats, as well as a tertiary battery of various anti-aircraft guns ranging in caliber from 105-to-20 mm (4.13-to-0.79 in).
Greater freebore length permits bullets to extend further out of the cartridge case to increase space for propellant within the case. [8] Increasing freebore length in order to increase bullet jump is used to delay the onset of resistance from friction and deformation that results when the bullet engages the rifling. [ 9 ]
A guide to the recoil from the cartridge, and an indicator of bullet penetration potential. The .30-06 Springfield (at 2.064 lbf-s) is considered the upper limit for tolerable recoil for inexperienced rifle shooters. [2] Chg: Propellant charge, in grains; Dia: Bullet diameter, in inches; BC: Ballistic coefficient, G1 model; L: Case length (mm)
The Mujahideen also utilized the 4.5-second timer on RPG rounds to make the weapon function as part of a flak battery, using multiple launchers to increase hit probabilities. At the time, Soviet helicopters countered the threat from RPGs at landing zones by first clearing them with anti-personnel saturation fire .
The delta L problem (ΔL problem) refers to certain firearm chambers and the incompatibility of some ammunition made for that chamber. ΔL is a Commission Internationale Permanente (C.I.P.) geometric dimensioning and tolerancing definition for cartridge cases that are longer than the chamber they have to fit in. "Delta L" essentially means "difference in length".
The AK-107 is a Russian 5.45×39mm assault rifle developed from the AK-100-series.It features a "balanced" operating system, similar to that used in the AEK-971.In this case, the designation AK does not indicate Avtomat Kalashnikova but Alexandrov/Kalashnikov.