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The previous 28 cm gun was the SK C/28 used on the Deutschland class.The Scharnhorst class received an improved version of the SK C/28 which had a longer barrel—the SK C/34.
Unlike the many early 3D-printed firearm designs, which were overbuilt in order to withstand the pressures and strain on the material from modern gunpowder cartridges, the Reprringer is small and only slightly larger than an equivalent gun made from steel.
The group also noted that 5.7×28mm firearms had existed for a longer period of time than 4.6×30mm firearms, and that the 5.7×28mm FN Five-seven pistol was already in production at that time, while the 4.6×30mm Heckler & Koch UCP pistol was a new concept.
They called the trigger "outstanding", and noted its light recoil, and said that the P50 was a "serious competitor" to other 5.7×28mm designs such as the FN Five-seven and Ruger-57. [ 11 ] The National Interest praised the low recoil, customisation options from the various rails, and the "one of a kind" top-break access , describing it as ...
FN Herstal was the first small arms manufacturer to respond to NATO's requirement; FN started by developing a shoulder-fired personal defense weapon, the P90, along with a small caliber, high velocity 5.7×28mm cartridge type. [16] The original 5.7×28mm cartridge, called the SS90, went into production with the P90 in 1990. [17]
The AR-57 PDW upper is a new design on AR-15/M16 rifles, blending the AR-15/M16 lower with a lightweight, monolithic upper receiver system chambered in 5.7×28mm. This model is also sold as a complete rifle, supplied with two 50-round P90 magazines. [1]
Magnum-action cartridges, are usually rifle cartridges that are both longer and more powerful than traditional full-powered rifle long-action cartridges, with a COL between 85 and 91 mm (3.34 and 3.6 in), including some of the long-action cartridges with a case head larger than 13 mm (.50 in) diameter, which is most commonly exemplified by the ...
[2] [3] The 5.7 Rock is a semi-automatic pistol developed, manufactured, and sold by Palmetto State Armory . [ 2 ] It is chambered for the FN 5.7×28mm cartridge and is characterized by its generally low recoil.